20-(3x-9)=-(-11+9)

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Solution for 20-(3x-9)=-(-11+9) equation:


20-(3x-9)=-(-11+9)

We simplify the equation to the form, which is simple to understand 
20-(3x-9)=-(-11+9)

Simplifying terms in parentheses
20-(3x-9)=-(-2)

Remove unnecessary parentheses
20-3x+9=-(-2)

Remove unnecessary parentheses
20-3x+9=+2

We move all terms containing x to the left and all other terms to the right. 
-3x=+2-20-9

We simplify left and right side of the equation. 
-3x=-27

We divide both sides of the equation by -3 to get x. 
x=9

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