Question

1. What is the value of the y-coordinate of the solution to the system of equations x + 2y = 9 and x - y = 3? 1) 6 3) 3 2) 2 4) 5​

Answer 1

2) 2

Explanation:

Subtract each equation from each other

x + 2y = 9

-x+ y = -3

3y = 6

3 3

So y = 2