Question: Solve using the substitution method. x - y = 9 4 x + 5 y = - 1 8 ( 1 , - 8 )

Solve using the substitution method.
x-y=9
4x+5y=-18
(1,-8)
(3,-6)
(2,-7)
(5,-4)
Solve using the substitution method. x - y = 9 4

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