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

X + 2y = 4
-2y - 3y =9

1 answer

double the first and add to the 2nd, assuming you have a typo in the second and meant
-2x - 3y = 9

2x + 4y = 8
-2x - 3y = 9

y = 17