Question

2x + 3y = 6
x -2y = -11

Answer 1

2x + 3y = 6 ... (1)
x - 2y = -11 ... (2)
(2) x 2
2x - 4y = -22 ... (3)
(3) - (1)
2x + 3y - (2x - 4y) = 6 -(-22)
2x + 3y - 2x + 4y = 6 + 22
7y = 28
y = 28 ÷ 7 = 4
(1)
x - 2y = -11
x - 2x4 = -11
x - 8 = -11
x = -11 -(-8)
x = -11+8
x = -3