-(1+7x)-6(-7-x)=20

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Solution for -(1+7x)-6(-7-x)=20 equation:


-(1+7x)-6(-7-x)=20

We simplify the equation to the form, which is simple to understand 
-(1+7x)-6(-7-x)=20

Remove unnecessary parentheses
-1-7x-6*(-7-x)=20

Reorder the terms in parentheses
-1-7x+(+42+6x)=20

Remove unnecessary parentheses
-1-7x+42+6x=+20

We move all terms containing x to the left and all other terms to the right. 
-7x+6x=+20+1-42

We simplify left and right side of the equation. 
-1x=-21

We divide both sides of the equation by -1 to get x. 
x=21

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