y = -2x - 14
y = 6x + 18
Substitution
6x + 18 = -2x - 14
6x + 2x = -14 - 18
8x = -32
x = -32/8
x = -4
Solve for y
y = 6(-4) + 18
y = -24 + 18
y = -6
Result
x = -4 y = -6
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