Question

2x + 4y = 160
1x + 4y = 72

Answer 1

x = 88; y = -4

Explanation:

2(x+2y) = 160 --> x + 2y = 80

--> 1x + 4y - x - 2y = 72 - 80

--> 2y = -8 --> y = -4

--> x = 88