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Sagot :

Answer:

x = 2

y = 5

Step-by-step explanation:

Assuming you are solving for x, you should set both equations equal to each other:

4x-3 = -2x+9

Rearrange so that the terms with an x are on the same side of the equation:

4x+2x=9+3

Simplify:

6x=12

x = 12/6 = 2/1 = 2

You would stop here if only solving for x.

If you are solving both equations simultaneously, first rearrange them into the form x + y = constant:

4x -y = 3

-2x -y = -9

Next multiply the second equation by -1:

4x -y = 3

2x +y = 9

Add the equations together to eliminate y:

4x+2x=3+9

This results in x=2 as shown in the first solution method

To find y, plug in x=2 into either equation:

y=4(2)-3

y=8-3=5

To check, plug x=2 into the other equation:

y=-2(2)+9

y=-4+9=5

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