SOLUTION: solve by the substitution method 7x+2y=-27 x=19-6y

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Question 333882: solve by the substitution method
7x+2y=-27
x=19-6y
Answer by rfer(16322) About Me  (Show Source):
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7(19-6y)+2y=-27
133-42y+2y=-27
-40y=-160
y=4
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x=19-6*4
x=-5
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7*-5+2*4=-27
-35+8=-27