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2x + y = 11
y = 11 - 2x
substitusi:
3x - 2y = 6
3x - 2(11 - 2x) = 6
3x - 22 + 4x = 6
3x + 4x = 6 + 22
7x = 28
x = 4
substitusi lagi
y = 11 - 2x
y = 11 - 2.4
y = 11 - 8
y = 3
Hp = {(4,3)}
semoga membantu ya :)