4p + q = 6
4 (0) + q = 6
0 + q = 6
q = 6
(0, 6)
4p + q = 6
4 (1) + q = 6
4 + q = 6
q = 6 − 4
q = 2
(1, 2)
4p + q = 6
4 (2) + q = 6
8 + q = 6
q = 6 − 8
q = -2
(2, -2)
4p + q = 6
4 (3) + q = 6
12 + q = 6
q = 6 − 12
q = -6
(3, -6)
Jadi, himpunan penyelesaian dari : 4p + q = 6 adalah {(0, 6), (1, 2), (2, -2), (3, -6)}