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2x-5y=-2(dikali 3)
6x-4y=32
6x-15y=-6
(dikurangkan)
11y= 38
y=38/11
3x-2y=16
3x-2(38/11)=16
3x-56/11=16
3x=16+56/11
3x=232/11
x=232/33