SOLUTION: solve 3x-y=-2 4y=12-16

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Question 329356: solve
3x-y=-2
4y=12-16
Answer by mananth(16946) About Me  (Show Source):
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3x-y=-2
4y=12-16
4y=-4
divide by 4
4y/4 = -4/4
y=-1
..
plug the value of y in the other equation
3x-y=-2
3x-(-1)=-2
3x+1=-2
3x=-2-1
3x=-3
3x/3 = -3/3
x=-1