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xx+1=xx+x\times 2
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x^{2}+1=xx+x\times 2
Multiply x and x to get x^{2}.
x^{2}+1=x^{2}+x\times 2
Multiply x and x to get x^{2}.
x^{2}+1-x^{2}=x\times 2
Subtract x^{2} from both sides.
1=x\times 2
Combine x^{2} and -x^{2} to get 0.
x\times 2=1
Swap sides so that all variable terms are on the left hand side.
x=\frac{1}{2}
Divide both sides by 2.