SOLUTION: solve by substitution: 2x-y=0 3x+2y=-7

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Question 327767: solve by substitution:
2x-y=0
3x+2y=-7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.2x-y=0
2.3x%2B2y=-7
From eq. 1,
y=2x
Substitute into eq. 2,
3x%2B2%282x%29=-7
7x=-7
highlight%28x=-1%29
.
.
.
Then from above,
y=2x=2%28-1%29
highlight%28y=-2%29