Question

2p + 11q = 5
7p - 3q = -24

Answer 1

2p + 11q = 5. (3)
7p - 3q = -24 (11)

6p + 33q = 15
77p + 33q = - 264
______________
83p = 249
p = 249/83
p = 3

2p + 11q = 5
2(3) + 11q = 5
6 + 11q = 5
11q = 5 + 6
11q = 11
q =11/11
q = 1