SOLUTION: Solve system of linear equations by elimination 3x - 30 = y 7y - 6 = 3x

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Question 1005339: Solve system of linear equations by elimination
3x - 30 = y
7y - 6 = 3x
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
3x-30=y
3x+6=7y, rewriting the second
subtract the second
3x-30=y
-3x-6=-7y
========
-36=-6y
y=6
That makes 3x-30=6
3x=36
x= 12
second one
7(6)-6=3(12)
42-6=36
(12,6)