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\left(3x-3\right)x=\left(x+1\right)\times 2+3\left(x-1\right)\left(x+1\right)
Variable x cannot be equal to any of the values -1,1 since division by zero is not defined. Multiply both sides of the equation by 3\left(x-1\right)\left(x+1\right), the least common multiple of x+1,3x-3.
3x^{2}-3x=\left(x+1\right)\times 2+3\left(x-1\right)\left(x+1\right)
Use the distributive property to multiply 3x-3 by x.
3x^{2}-3x=2x+2+3\left(x-1\right)\left(x+1\right)
Use the distributive property to multiply x+1 by 2.
3x^{2}-3x=2x+2+\left(3x-3\right)\left(x+1\right)
Use the distributive property to multiply 3 by x-1.
3x^{2}-3x=2x+2+3x^{2}-3
Use the distributive property to multiply 3x-3 by x+1 and combine like terms.
3x^{2}-3x=2x-1+3x^{2}
Subtract 3 from 2 to get -1.
3x^{2}-3x-2x=-1+3x^{2}
Subtract 2x from both sides.
3x^{2}-5x=-1+3x^{2}
Combine -3x and -2x to get -5x.
3x^{2}-5x-3x^{2}=-1
Subtract 3x^{2} from both sides.
-5x=-1
Combine 3x^{2} and -3x^{2} to get 0.
x=\frac{-1}{-5}
Divide both sides by -5.
x=\frac{1}{5}
Fraction \frac{-1}{-5} can be simplified to \frac{1}{5} by removing the negative sign from both the numerator and the denominator.