A b is not an equation A b b a is not an equation?

Is a+b=b+a an equation? It depends on the right a and b here, if it is an unknown number, it conforms to the concept of "an equation with unknown numbers is called an equation", so a+b=b+a is an equation. If a and b are not unknowns, they are not equations, they are just equations.

According to the definition of an equation, an equation with unknowns is called an equation. Therefore, whether this is an equation or not needs to be analyzed on a case-by-case basis.

First of all, the left and right sides of the equation are equal, and this one is eligible:

Secondly:1If either a or b is an unknown or both a and b are unknowns, then the equation is the equation.

2.If a and b are both known numbers, then they are equations, not equations.

So it's okay to judge whether it's an equation or not.

is an equation, because there are unknowns, and a b is an unknown binary equation, which can be rewritten as a situation of a-b = 0.

If it's a known, it's just an equation, and if it's an unknown, it's an equation.

1 An equation with unknowns is called an equation.

2 The value of an unknown that equalizes both sides of an equation is called the solution of the equation.3 The process of finding the solution of an equation is called solving an equation.

4 An equation that contains only one unknown number (element) and the exponent of the unknown number is 1 (degree) is called a one-dimensional equation.

5 The denominator in a one-dimensional equation does not contain unknowns, and the one containing unknowns is called a fractional equation.6 The same number or the same algebraic formula is added or subtracted from both sides of the equation at the same time, and the result obtained is still the equation.

7 Multiplying or dividing both sides of the equation by the same non-zero number is still an equation.

is an equation with unknowns a, b, and is an equation.

is an equation because an equation with unknowns is called an equation.

An equation must be an equation, and an equation does not have to be an equation.

It's not an equation, the equation has to be x, you know

An equation is an equation with an unknown quantity. a, b, are commonly used in algebra to mean constants.

So, a+b=b+a, is an equation, not an equation.

a+b=b+a is the equation.

An equation is an equation that contains unknowns. So a+b=b+a is the equation.

Because an equation is an equation with unknowns, say 3x 12 45

8x＋36＝78

AB satisfies the equation, which means AB satisfies the equation.

1.An equation containing unknowns is called an equation, and it can also be said that an equation containing unknowns is an equation.

2.The value of the unknown that makes the equation true, called the solution of the equation, or the root of the chain equation.

3.Solve equations.

It is the process of finding the values of all the unknowns in an equation.

4.An equation must be an equation, and an equation does not have to be an equation. An equation without unknowns is not an equation.

5.Validation: After the equation is generally solved, it needs to be verified. Verification is to substitute the value of the solved unknown into the original equation to see if both sides of the equation are equal. If it is equal, then the value obtained is the solution of the equation.

6.Precautions: Write the word "solution", align the equal sign, and test.

7.The equation relies on the relation of the parts of the equation, and the relation of the parts of addition, subtraction, multiplication and division (addition + addition = and, sum - one of the additions = another addition, difference + subtraction = subtraction, subtraction - subtraction = difference, subtraction - difference = subtraction, factor factor = product, product one factor = another factor, dividend.

divisor = quotient, dividend quotient = divisor penetration, quotient divisor = dividend).

Summary. Hello! We're happy to answer for you!

Let's start with the definition of an equation: An equation is an equation with unknowns. It is an equation that expresses the equality relationship between two mathematical formulas (such as two numbers, functions, quantities, operations), and the value of the unknown number that makes the equation true is called the "solution" or "root".

The process of finding the solution of an equation is called "solving an equation".

So the above equation is not an equation because he has no solution.

Is a+b=b+a an equation?

Hello! We're happy to answer for you! Let's start by looking at the definition of the equation:

An equation is an equation that contains unknowns. It is an equation that expresses the equality relationship between two equations (such as two numbers, functions, quantities, and operations), and the value of the unknown in the Xun pants that makes the equation true is called "solution" or "root". The process of finding the solution of an equation is called the "solution square".

So the above equation is not an equation because he has no solution.

Is x=5 an equation?

Hello! No.

There is no arithmetic. a+b=b+a a,b can take any value.

Are you sure. x=5 is the equation, you gave the wrong answer, what kind of institution are you, are you a teacher?

OK, a+b=b+a, can be any value, that is no solution.

An equation is an equation with an unknown number of first matches! There are two conditions: one is the equation, and the other is that there must be a specified unknown.

a+b=b+a, although Huai regret is an equation, is not an equation in the strict sense, and there are no unknowns, if you specify a or b or a or b are unknowns, it is an equation.

An equation is an equation that represents the equality relationship between two mathematical formulas (such as two numbers, functions, quantities, and operations), and is an equation containing unknowns, usually with an equal sign "=" between the two. It comes in many forms, such as unary linear equations, binary linear equations, etc. It is widely used in mathematics, physics and other science application problems.

Therefore, a+b+c is not an equation.

a+b+c, this is not an equation because there are no unknowns, no equal sign.

Solution: It is known from the tremor that a+b=5 ab=6 is a system of binary quadratic equations, which can be solved by the elimination method.

From the known a+b=5, b=5—a can be substituted into the equation ab=6.

a(5—a)=6.The one-element quadratic Xiang excavation a 2-5a+6=0 is factored to obtain (a-2) (a-3)=0

The solution is a=2 or a=3 and then substituted into b=5—a

b = 3 when a = 2 or b = 2 when a = 3

So the solution of the equation a+b=5 ab=6 is a=2 and b=3, and the kernel is a=3 and b=2

No, a=2b is the equation.

An equation is an equation that contains unknowns. It is an equation that expresses the equality relationship between two mathematical formulas (such as two numbers, functions, quantities, operations), and the value of the unknown number that makes the equation true is called the "solution" or "root". Because there are two unknowns in a=2b, and a=2b is an equation, it follows that a=2b is the equation.

Basis for solving the equation.

1. Shift the term and change the sign: move some terms in the equation from one side of the equation to the other with the previous symbols, and add and subtract, subtract and add, multiply and divide, and divide by multiplication.

2. The basic properties of the equation:

1) Add (or subtract) the same number or the same algebraic formula on both sides of the equation at the same time, and the result is still the equation. It is expressed in letters as: if a=b, c is a number or an algebraic formula.

2) Multiply or divide both sides of the equation by the same non-0 number at the same time, and the result is still the equation. It is expressed in letters as: if a=b, c is a number or an algebraic formula (not 0).

In the fourth unit of fifth-grade mathematics of Fengdu County Primary School, there is such a true/false question: a+b=b+a is an equation. During the correction, there was an argument among the teachers, and some teachers thought that it was an equation on the grounds that it was in line with the meaning of the equation, that is, an equation containing unknowns.

When some teachers questioned whether A and B could represent unknowns (because unknowns are generally represented by X, Y, and Z), these teachers found out the reason, and on page 54 of the textbook, there was a question to determine which formulas were equations: 6 (A+2) = 42, and it was said that "A is looking at unknowns here", which shows that the letters A and B can represent unknowns. Some teachers think that a+b=b+a is not an equation, and here it only means the commutative law of addition.

One is the identity, such as a a=2a, and the second is the conditional equation, such as 2a=6, which is only true when a=3; The third type is the equation of contradictions, such as a+1=a2, can it be true? Obviously not tenable. The equation should generally be a conditional equation, while a+b=b+a should be an identity, so it is not an equation.