Question

Explain in a complete sentence if the point (2,-4) is the solution to the system of equations. Show your work in the space provided.

x+y=-2
2x-y=8

Answer 1

Explanation:

2x - y = 8

x + y = - 2

3x = 6

3x /3 = 6/3 Dividing bot sides by 3 to find x.

x = 2

Plug in the value of x to find y.

2 ( 2) - y = 8

4 - y = 8

-y = 8 - 4

- y = 4

y = -4

The solution: ( 2, -4)