There is only one explanation for the system of equations

A system of binary linear equations.

In some cases, there may be no solution, in some cases, there may be only one solution, and in some cases there may be an infinite number of solutions, such as the one you above.

ax+by=3...1)

x+2y=2...2)

When a=1, b=2.

The equation consists of:

x+2y=3...1‘)

x+2y=2...2’)

There is no solution to this system of equations.

When a=1, b=1.

The equation consists of:

x+y=3...1‘‘)

x+2y=2...2’’)

This system of equations has only one set of solutions: x=4, y=-1, when a=3, 2, b=3.

The equation consists of:

3/2)x+3y=3...1‘‘')

x+2y=2...2’’')

This system of equations has an infinite number of solutions.

For example, x=0, y=1, x=1, y=1 2, x=2, y=0, etc. are all solutions to systems of equations.

The so-called system of equations has only one set of solutions, one means that the two equations of the system of equations cannot be equivalent (that is, there is actually only one equation), otherwise there will be countless sets of solutions; The second is that the system of equations must have a solution, for example, if a=1 and b=2, the system of equations has no solution.

Clem's Law. The rank is equal to n, the value of the coefficient determinant is not equal to zero, and the equation has a unique solution (homogeneous equations have only zero solutions). As for the rank less than n, there may or may not be an infinite number of solutions.

To put it simply, for this problem, the ratio of A and B cannot be 1 to 2, otherwise there may be infinite solutions or no solutions.

The coefficient ratio of x and y cannot be equal to 2, i.e. a b is not equal to 1 2

The explanation of the word system of equations is: also known as "simultaneous equation". Several equations are studied together so that the unknowns satisfy a set of equations for each equation at the same time.

The value that satisfies the unknowns of each equation in the system of equations at the same time is called the "solution" of the system of equations. The process of finding all of its solutions is called "solving a system of equations".

The explanation of the word system of equations is: also known as "simultaneous equation". Several equations are studied together so that the unknowns satisfy a set of equations for each equation at the same time.

A value-bonded potato that satisfies the unknowns of each equation in the system of equations at the same time is called the "solution" of the system of equations. The process of finding all of its solutions is called "solving a system of equations". The parts of speech are:

Noun. Pinyin is: fāngchéngzǔ.

The phonetic pronunciation is: The structure is: square (single structure) Cheng (left and right structure) group (left and right structure).

What is the specific explanation of the system of equations, we will introduce it to you through the following aspects:

1. Online explanation [click here to view the details of the plan].

A system of equations, also known as simultaneous equations. Several equations are studied together so that the unknowns satisfy a set of equations for each equation at the same time. The value that satisfies the unknowns of each equation in the system of equations at the same time is called the "solution" of the system of equations.

The process of finding all of its solutions is called "solving a system of equations".

Idioms about systems of equations.

Overlapping group, overlapping group, passing Gui attack group, heavy stacking group.

Words about systems of equations.

Analyze the milestones of the group, and continue the group, overlap the group, Wan Lipeng, Cheng Cheng, Zhu Lixue, repeat the group, overlap the group, and pass the Gui attack group.

Sentence formation about equation faction group.

1. The advantage of this method is that the calculation is simple, and only some quadratic equations need to be solved.

2. This system of simultaneous equations is decomposed into a group of four, a group of two, and a group of three simultaneous equations.

3. A tomography inversion method based on generalized inverse is proposed to unify the theory of generalized inverse and solving general equations.

4. In this paper, a numerical solution method is proposed for the system of bound electron occupation probability equations by using the multi-time scale perturbation theory.

5. The method does not need to solve the large simultaneous equations, and the solution of the three-bending moment equation can be quickly and accurately obtained, and the theory of the virtual bending moment method is mathematically demonstrated.

You can go directly to the denominator and solve it.

It can also be solved step by step after the closure can be exchanged.

For reference, please dig and laugh at Nasun Nu.

The inverse of Vedder's theorem.

A4 and A7 are equations x 2-2x-8 = 0

of the two roots. x-4)(x+2)=0

x = 4 or -2

a4+a7=2……①

a4×a7=-8……②

According to A4=2-A7, substitution

2-a7）×a7=-8

Solving a quadratic equation yields a7=-2 or a7=4

Then substitute the two solutions of a7 into each .

a4 = 4 or a4 = -2

Answer: Substituting equation (1) into equation (2) [k(x-1)] 4x square, merging the similar terms of this mu, Cong Sen obtains the formula on the right in the figure. Analytic geometry problems often do not have to calculate x, y, it is enough to do a part according to the requirements of the problem.

If you want to solve it, use the root finding formula to solve it.

You can only substitute the first equation into the second equation to get the quadratic equation.

y=2(x-1) is known from the title

Then x 5+y 4=1 can become.

4x²+5×（2x-2）²=20

4x²+5×(4x²-8x+4)=20

4x²+20x²-40x+20=20

24x²-40x=0

So the quadratic equation you want is 24x -40x=0 and the simplification is 3x -5x=0

The two sections of the equal sign cover imitation edge each muffled circle self-gripping fiber, the process is as follows.

Alternative decree m=x

The solved m,n is represented by a,b,c, and then open the square, pay attention to the plus and minus signs.

Combine 1 + 2 to get 1+3 < 0+0, i.e. 4 < 0

Obviously, there is no solution to the group of inequalities.

By the way, this answer is a group of inequalities, and the answer is not a wide range of equations.

Solve the system of equations, 1+n 0, n -1, 3-n 0, n 3, and there is no solution to the system of equations hidden or in the row.

Solution: Silver Missing Posture 3-n<0

n<3n> 3

Because: hn<0;n>3

h<0: n>3; h<0

Belch. I don't know if your conditions are finished, there is a high probability that this is the case with envy.

Substituting equation (1) into equation (2)[k(x-1)] 4x squared, merging similar terms, we get the equation Zheng Nianzi Youqiu on the right in the figure. The problem of analytic geometry is often not necessarily.

Yes. This is very good in layman's terms. Each one is different from each other. Compare to those who say. You can consult the answers of professionals. It's okay to ask the people around you. It should be treated in conjunction with daily life.

The first one gets n -1

The second gets n 3

To sum up, n has no solution.

Hello, it is possible that there is a unilateral nasal polyp with sinusitis, which requires surgery**.

x+y=m,2x-y=6,add 3x=m+6x=m 3+2y=m-x=2m 3-2x>0m 3+2> 0m open vertical 3>-2m>-6y, "Naozhou 02m 3-2<02m 3<2m<3 so -6

There is no need to dream all the time, it is better to go to work and make money quickly to realize your dreams.

Lecture 4 Problems with Systems of Equations In textbooks, we have already known the solutions of the two-dimensional linear equations, the ternary linear equations, and the simple two-dimensional quadratic equations. Using this knowledge, you can study the image of a primary function and the image of a quadratic function.