What is the y-coordinate of the solution of the system of equations?

y=2x+14
−4x−y=4

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y = ?

3 answers

well, you know that 2x = y-14
So, use that in the other equation:

-4x = -2(2x), so
-2(y-14)-y = 14
...
The answer is 8
8 Chris is right