SOLUTION: How do I solve the linear system 3x - 4y = 1 and y = - 2x + 8 and write my anwser for the y coordinate?

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: How do I solve the linear system 3x - 4y = 1 and y = - 2x + 8 and write my anwser for the y coordinate?      Log On


   

Question 421742: How do I solve the linear system 3x - 4y = 1 and y = - 2x + 8 and write my anwser for the y coordinate?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
3x-4(-2x+8)=1
3x+8x-32=1
11x=33
x=3
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3*3-4y=1
9-4y=1
-4y=-8
y=2
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(3,2)
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proof
2=-2*3+8