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2\left(2x+1\right)-2x\left(x+1\right)=2x\times 2-\left(x-1\right)\times 2x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2x, the least common multiple of x,2x.
4x+2-2x\left(x+1\right)=2x\times 2-\left(x-1\right)\times 2x
Use the distributive property to multiply 2 by 2x+1.
4x+2-2x^{2}-2x=2x\times 2-\left(x-1\right)\times 2x
Use the distributive property to multiply -2x by x+1.
2x+2-2x^{2}=2x\times 2-\left(x-1\right)\times 2x
Combine 4x and -2x to get 2x.
2x+2-2x^{2}=4x-\left(x-1\right)\times 2x
Multiply 2 and 2 to get 4.
2x+2-2x^{2}=4x-2\left(x-1\right)x
Multiply -1 and 2 to get -2.
2x+2-2x^{2}=4x+\left(-2x+2\right)x
Use the distributive property to multiply -2 by x-1.
2x+2-2x^{2}=4x-2x^{2}+2x
Use the distributive property to multiply -2x+2 by x.
2x+2-2x^{2}=6x-2x^{2}
Combine 4x and 2x to get 6x.
2x+2-2x^{2}-6x=-2x^{2}
Subtract 6x from both sides.
-4x+2-2x^{2}=-2x^{2}
Combine 2x and -6x to get -4x.
-4x+2-2x^{2}+2x^{2}=0
Add 2x^{2} to both sides.
-4x+2=0
Combine -2x^{2} and 2x^{2} to get 0.
-4x=-2
Subtract 2 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-2}{-4}
Divide both sides by -4.
x=\frac{1}{2}
Reduce the fraction \frac{-2}{-4} to lowest terms by extracting and canceling out -2.