SOLUTION: 7x+3= -25 x=-1 -3y solve by the substitution method.

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Question 473436: 7x+3= -25
x=-1 -3y
solve by the substitution method.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
7x+3= -25
x=-1 -3y
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7x+3= -25
7x = -28
x = -4
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x=-1 -3y
-4 = -1 - 3y
-3 = -3y
y = 1