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3y - 5(2y + 2) = - 24
3y - 10y - 10 = - 24
- 7y = - 14
y = 2
x = 2(2) + 2 = 6
maka x = 6 dan y = 2
x = 2 + 2y
3y - 5x = -24
3y - 10 - 10y = -24
-7y - 10 = -24
-7y = -14
y = 2
x - 2y = 2
x - 4 = 2
x = 6
x = 6
y = 2