A) x + y = -80
B) 3x = y
x + 3x = -80
4x = -80
x = -20
y = -60
The answer is= a(15) and b(135) and c (135)
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70-q-q-2q= 80
combine like terms first
so you get 70-4q= 80
subtract 70 on both sides and you get -4q= 10
divide -4 on both sides and you get q= 10/-4 or -2.5
