0
y = -2.5
-4x - 4y = 8
-4y = 8 - -4x
y = -2 - x
-4x - 4(-2 - x) = 8
x - (-1 -x) = 2
x + 1 + x = 2
2x = 2-1
2x = 1
x = 1/2
y = -2 - 1/2 = -2.5
x = .5
y = -2.5
PROOF:
-4(.5) - 4(-2.5) = 8
-2 - (-10) = 8
-2 + 10 = 8
8 = 8
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∙ 14y ago
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