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-6x+2y=-12
-------------- x(-)
6x-2y=12
------------ x 1/2
3x-y=6
3x-y≤6
arah arsiran kekiri (≤)
4x+6y=24
------------- x 1/2
2x+3y=12
2x+3y≤12
arah arsiran kebawah (≤)
Pilihan B.
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