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\left(x+5\right)\times 2-\left(x-5\right)\times 4=6
Variable x cannot be equal to any of the values -5,5 since division by zero is not defined. Multiply both sides of the equation by \left(x-5\right)\left(x+5\right), the least common multiple of x-5,x+5,x^{2}-25.
2x+10-\left(x-5\right)\times 4=6
Use the distributive property to multiply x+5 by 2.
2x+10-\left(4x-20\right)=6
Use the distributive property to multiply x-5 by 4.
2x+10-4x+20=6
To find the opposite of 4x-20, find the opposite of each term.
-2x+10+20=6
Combine 2x and -4x to get -2x.
-2x+30=6
Add 10 and 20 to get 30.
-2x=6-30
Subtract 30 from both sides.
-2x=-24
Subtract 30 from 6 to get -24.
x=\frac{-24}{-2}
Divide both sides by -2.
x=12
Divide -24 by -2 to get 12.