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semoga benar
(8+1)/(x-2)=(3-4)/(x-2)
(9)/(x-2)=(-1)/(x-2)
(9)(x-2)=(-1)(x-2)
9x-18=-x+2
9x+x=18+2
10x=20
x=20/10
x=2
atau
x-2=9(x-2)/(-1)
x-2=9x-18/-1
x-2=-9x+18
x+9x=18+2
10x=20
x=20/10
x=2
x+2=2+2=4
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