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\left(x+1\right)\times 2x+\left(x-1\right)\left(x+1\right)\left(-2\right)=\left(x-1\right)\times 3
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 \left(x-1\right)\left(x+1\right), the least common multiple of x-1,x+1.
\left(2x+2\right)x+\left(x-1\right)\left(x+1\right)\left(-2\right)=\left(x-1\right)\times 3
Use the distributive property to multiply x+1 by 2.
2x^{2}+2x+\left(x-1\right)\left(x+1\right)\left(-2\right)=\left(x-1\right)\times 3
Use the distributive property to multiply 2x+2 by x.
2x^{2}+2x+\left(x^{2}-1\right)\left(-2\right)=\left(x-1\right)\times 3
Use the distributive property to multiply x-1 by x+1 and combine like terms.
2x^{2}+2x-2x^{2}+2=\left(x-1\right)\times 3
Use the distributive property to multiply x^{2}-1 by -2.
2x+2=\left(x-1\right)\times 3
Combine 2x^{2} and -2x^{2} to get 0.
2x+2=3x-3
Use the distributive property to multiply x-1 by 3.
2x+2-3x=-3
Subtract 3x from both sides.
-x+2=-3
Combine 2x and -3x to get -x.
-x=-3-2
Subtract 2 from both sides.
-x=-5
Subtract 2 from -3 to get -5.
x=5
Multiply both sides by -1.