Question

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

Answer 1

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

----------------------------------

2y = -10

y=-5

3) As the question, asks only for the y coordinate we can stop it here.