Question

Solve for the two variables in the following system of equations. 7x-8y=-12
--4x+2y=3

Answer 1

x=0, y=3/2. (0, 3/2).

Explanation:

7x-8y=-12

-4x+2y=3

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7x-8y=-12

4(-4x+2y)=4(3)

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7x-8y=-12

-16x+8y=12

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-9x=0

x=0/-9

x=0

7(0)-8y=-12

0-8y=-12

8y=0-(-12)

8y=0+12

8y=12

y=12/8

simplify

y=3/2