How to solve this problem 3x 4y 6 2x 3y 5

3x+4y=6 derives x=2-4 3y

Substituting x=2-4 3y into 2x+3y=5 gives 4-8 3y+3y=5, so y=3

Substituting y into x=2-4 and 3y gives x=-2

As in the title, the equivalence equation is as follows:

6x+8y=12 (1)

6x+9y=15 (2)

2)-(1) get.

y=3 is substituted for 3x+4y=6

Get. x=-2

Solution: Equation 3x+4y=6, equation 2x+3y=5, equation multiplied by 2, equation multiplied by 3, subtracted by equation 2, etc., get -y=-3, so y=3 is substituted to get x=-2

Let's figure out what y is.

3x+4y+2x+3y=11

5x+7y=11

7y=11-5x

y=(11-5x)/7

Then apply the 3x+4x formula to get the following.

Because y=(11-5x) 7

So: 3x+4*(11-5x) 7+2x+3*(11-5x) 7=5+6

5x+7*(11-5x)/7=11

5x+11-5x=11

5x-5x=11-11

There is no solution here.

3x+4y=6 ①

2x+3y=5 ②

In 1 multiplied by 2 - go 2 times 3 the result is y=3 in the 1 equation x=-2 and you're good to go.

General. Binary Linear Equations.

Solution: 3x+4y=6

2x+3y=5 ②

Replace x2.

6x+8y=12 ③

Replace x3.

6x+9y=15 ④

Get. y=3 substitutes y=3 into it.

2x+9=5

The solution yields x=-2

So x=-2 y=3

3x+4y=6 （1）

2x+3y=5 （2）

Solution 1, (1) 2: 6x+8y=12

2）×3： 6x+9y=15

2) 3-(1) 2: y=3

Substituting y=3 into (1) yields: x=-2

Solution 2, (1) 3: 9x+12y=18

2）×4： 8x+12y=20

1) 3-(2) 4:

Substituting x=-2 into (1) yields: y=3

It can be obtained by reducing the coefficient before x to equal simultaneous *2.

6x+8y=12...for

6x+9y=15...for

Use - to get y=3

Bringing y=3 into or x gives us -2

Don't know what grade you are?

As in the problem, 3x+4y=4, 6x+2y=3, solve the value of x,y.

Solution: Multiply both sides by 2 at the same time to get 6x+8y=8, which gives 6x=8-8y, and 6x=3-2y by the stupid shift term

So = is 8-8y=3-2y, which is simplified to y=5 6 (five-sixths).

Bringing in gives 3x+4*(5 6)=4, and then x=[4-4*(5 6)] 3=(4-24 5) 3=(-4 5) 3=-4 15 (4/15).

So, x=-4 15 (four-fifteenths of a loss), y=5 6 (five-sixths).

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For example, the equivalence equation is as follows:

6x+8y=12 (1)

6x+9y=15 (2)

Yinqing carries 2)-(1) to get the stove.

y=3 is substituted for 3x+4y=6

Get. x=-2

1, {3x-2y=5 {5x-2y=7 Fengshen- get 2x=2, x=1, substitute x=1 into the silver wheel loss, 3-2y=5y=-1, so the solution of the original equation is {x=1{y=-12, {2x+3y=-5 {3x-4y=18 Tongzhi 4, get 8x+12y=-20

<> the above is the process of solving the problem, please check, I hope the thick bush can help you!

Solution: 4x-3y=3

5x-2y=-5 ②

4-5: 7y=-35

y=-5 put y=-5 generations of Wang Qi into the trap and sell the ear to get 5x+10=-5x=-3, so x=-3, y=-5

4x-3y=3,*2, that is, 8x-6y=6

5x-2y=-5,*3,Xinghui.e., which socks 15x-6y=-15 Li with excitement-:7x=-21,x=-3

Substitution , 3y=-15, y=-5

Summary. Dear, according to the message you sent, we can know that -4x+3y=2 -4x+5y=-6 so we can subtract the first formula from the second formula, so that we can get 2y=-8, so that we can solve y to be equal to -4 In the same way, we substitute y=-4 into the first formula, and we can solve x=-7 2<>

I hope mine can help you and wish you success in your studies! <>

<>4x+3y=2+-4x+5y=-6

Dear, about the question you asked, is it to solve the values of x and y? <>

Be. According to the information you sent, we can know that -4x+3y=2 -4x+5y=-6 can make the second formula minus the first formula, so that we can get 2y=-8, so that we can solve y to be equal to -4 In the same way, we can substitute y=-4 into the first formula, and we can solve x=-7 2<>

I hope mine can help you and wish you success in your studies! <>

<> dear, for such a question you asked, we can use addition and subtraction to write this ridge collapse question <>

<> use the properties of the equation to make the absolute value of the coefficient before one of the two equations in the equation system equalize, and then add (or subtract) the two equations to eliminate the unknown with the cherry blossom circle, so that the equation contains only one unknown and can be solved. This method of solving a system of binary equations like this is called addition, subtraction, and subtraction, or addition and subtraction for short.

Dear, about such a question you asked, or in addition to the addition and subtraction of the Yuan method, we also have the <> of substituting the Yuan elimination method

The equation of 2 unknowns is called a binary equation, and the elimination method directly substitutes the unknown number in one formula into another formula, the purpose is to eliminate an unknown number with the equation property, and turn it into a one-dimensional equation to find a solution to an unknown, and then substitute the solution into the original formula to find another unknown.

Solving equations is a no-brainer.

3x-5y=6 ①

2x-3y=4 ②

2, 3 get:

6x-10y=12 ③

6x-9y=12, obtain: and eliminate the mask.

y=0y=0

Change the bridge to y=0 and substitute it, and get:

3x=6x=2

The solution of the system of equations is x=2, y=0

Summary. 3x+4y=7 6x+5y=2？I'm answering for you :

3x+4y=7 6x+5y=2

3x+4y=7 6x+5y=2？I'm answering for you :

Hello! According to the current topic information, 3x+4y=7 6x+5y=2? This is a simple calculation problem.

3x+4y=7①6x+5y=2②①×26c+8y＝143y＝14-23y＝12y＝12÷3y＝4

3x+16 73x 7-16x -9 3x -3 Answer: x -3, y 43x+4y=7 6x+5y=2 Book this 26c+8y 143y 14-23y 12y 12 3y Min thick 43x+16 73x 7-16x -9 3x -3