solve : 3by x-1 + 9by3x-9=2(x-2).where x not equal to 1,2,3,
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3(x-1)+9(3x-9)=2(x-2)
3x-3+27x-81=2x-4
3x+27x-2x= -4+81+3
28x=80
x=20/7
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