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Jadi, himpunan penyelesaian dari persamaan diatas adalah (3,1)2x + y = 7 (dikali 1)
2x + 6y = 12
2x + y = 7 -
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5y = 5
y = 1
x + 3y = 6
x + 3(1) = 6
x = 3
x = 3
y = 1