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2x+8-\left(2x-4\right)\times 5=4x-8
Variable x cannot be equal to any of the values 0,2 since division by zero is not defined. Multiply both sides of the equation by 4x\left(x-2\right), the least common multiple of 4x^{2}-8x,2x,x.
2x+8-\left(10x-20\right)=4x-8
Use the distributive property to multiply 2x-4 by 5.
2x+8-10x+20=4x-8
To find the opposite of 10x-20, find the opposite of each term.
-8x+8+20=4x-8
Combine 2x and -10x to get -8x.
-8x+28=4x-8
Add 8 and 20 to get 28.
-8x+28-4x=-8
Subtract 4x from both sides.
-12x+28=-8
Combine -8x and -4x to get -12x.
-12x=-8-28
Subtract 28 from both sides.
-12x=-36
Subtract 28 from -8 to get -36.
x=\frac{-36}{-12}
Divide both sides by -12.
x=3
Divide -36 by -12 to get 3.