Question

A pair of equations is shown below.

Answer 1

3x − y = 9
y = −2x + 11

3x − (−2x + 11) = 9
3x + 2x - 11 = 9
5x = 9 + 11
5x = 20
x = 4

y = −2x + 11 = -2*4+11 = 3 

(4, 3)

Answer 2

Correct answer is (4,3) you could figure this out by taking each answer and plugging them into the equation until one of them worked out