Answer:
x = 8
y = -8
Explanation:
1. у = - 2х +8
2. - 7x - бу = - 8
Substitute y in equation 2 using equation 1
-7x - 6(-2x+8) = -8
-7x -(-12x) - 48 = - 8
Two negatives = positive
-7x + 12x - 48 = -8
5x - 48 = - 8
Plus 48 on both sides
5x = 40
Isolate x by dividing both sides by 5
x = 8
Using the value of x, find what y is.
y = -2(8) + 8
y = -16 + 8
y = -8
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