SOLUTION: 4x+y=12;x=4 Solve for y then find vale of y for given x

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Question 771077: 4x+y=12;x=4
Solve for y then find vale of y for given x
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
4x+y=12;x=4
4*4+y=12
y=12-16
y=-4