SOLUTION: use substitution method to solve linear system x-2y=-25 3x-y=0

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Question 542189: use substitution method to solve linear system
x-2y=-25
3x-y=0
Answer by jpg7n16(66) About Me  (Show Source):
You can put this solution on YOUR website!
The easiest thing for you to do here, is turn equation 2 into 3x=y.
.
Then just plug in 3x in place of y in equation 1.
.
x-2y=-25
x-2%283x%29=-25
x-6x=-25
-5x=-25
x=5
.
Then plug that back into your y= formula.
.
y=3x
y=3%285%29=15