SOLUTION: I'm not shure how to graph this or solve it. It just said to solve it algebraically. 3x+2y=10 and y=-4x+15 Thank you

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Question 893499: I'm not shure how to graph this or solve it. It just said to solve it algebraically.
3x+2y=10 and y=-4x+15
Thank you
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute.

3x%2B2%28-4x%2B15%29=10
3x-8x%2B30=10
-5x=-20
x=4

y=-4%2A4%2B15 according to the given equation for y.
y=-16%2B15
y=-1