5x +y 6 5x3y--4 The y-coordinate of the solution to the system shown is

y=-5
1) Let's solve the system below
5x +y = 6
5x +3y=-4
2) Let's multiply the first one by -1
-5x -y = -6
5x +3y = -4
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2y = -10
y=-5
3) As the question, asks only for the y coordinate we can stop it here.