Question

Suppose that x - y = 2 and 2x – 3y = 11. Then x + y =

Answer 1

x + y = -12

Explanation:

x - y = 2

2x – 3y = 11

-2x +2y = -4

2x – 3y = 11

-y = 7

y = -7

x = -5

x + y = -12