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3(x-1)=2(x+1)
3x-3=2x+2
3x-2x=3+2
x=5
9(x²-2x+1)=4(x²+2x+1)
9x²-18x+9=4x²+8x+4
5x²-26x+5=0
(5x-1)(x-5)=0
jadi x=1/5 atau x=5