himpunan penyelesaian dari 2x + 5 = 1/4 (y-6) 2 (x+7) = 3y - 80/3

2x + 5 = 1/4.(y-6) (kali 4 kedua ruas)
8x + 20 = y - 6
8x - y = -6 - 20
8x - y = -26
2/3(x+7) = 3y - 80/3 (kali 3 kedua ruas)
2.(x+7) = 9y - 80
2x + 14 = 9y - 80
2x - 9y = -80 - 14
2x - 9y = -94
8x - y = -26 | ×1
2x - 9y = -94 | ×4
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8x - y = -26
8x - 36y = -376 -
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35y = 350
y = 350 : 35
y = 10
8x - y = -26
8x - 10 = -26
8x = -26 + 10
8x = -16
x = -16 : 8
x = -2
HP = {(-2,10)}