x-2y= 4 dan 2x+3y= 0
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Dieliminasikan nilai x, maka tentukan nilai y.
x - 2y = 4 >>>>>>>>>>> dikalikan 2
2x + 3y = 0 >>>>>>>>>> dikalikan 1
2x - 4y = 8
2x + 3y = 0 _
-7y = 8
y = -8/7
Dieliminasikan nilai y, maka tentukan nilai x.
x - 2y = 4 >>>>>>>>>>> dikalikan (-3)
2x + 3y = 0 >>>>>>>>>> dikalikan 2
-3x + 6y = -12
4x + 6y = 0 _
-7x = -12
x = (-12)/(-7)
x = 12/7
Jadi, himpunan penyelesaian tersebut adalah {x , y} = {12/7 , -8/7}.
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