Question

2х + Зу = 9

-2х + 2y = 6
The y-coordinate of the solution to the system shown is
3
5
9
15

Answer 1

3

Explanation:

Given the 2 equations

2x + 3y = 9 → (1)

- 2x + 2y = 6 → (2)

Adding the 2 equations term by term will eliminate x

(2x - 2x) + (3y + 2y) = (9 + 6), that is

5y = 15 ( divide both sides by 5 )

y = 3