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6x - 2y = 4
(6) x + 3y =4 : sama2 dikalikan 6
6x + 18y = 24
6x + 18y = 24
6x - 2y = 4
___________ _
20y = 20
y = 1
y=1 disubstitusikan ke 3x - 2y = 2
3x -2.1 =2
3x - 2 = 2
3x =4
x =