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What is the y-coordinate of the solution for the system of equations?
{y=3x−1
x−y=−9
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(1) Answers

xxCheerBowsxx

On the second equation: add the y to both sides, this will get you with x=y-9. Plug this into the first equation and solve.
y=3y-27-1
-2y=-28
y=14, which is your answer