3(2-2x)-3(7+4x)=21

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Solution for 3(2-2x)-3(7+4x)=21 equation:


3(2-2x)-3(7+4x)=21

We simplify the equation to the form, which is simple to understand 
3(2-2x)-3(7+4x)=21

Reorder the terms in parentheses
+(+6-6x)-3*(7+4x)=21

Remove unnecessary parentheses
+6-6x-3+*(+7+4x+)=+21

Reorder the terms in parentheses
+6-6x+(-21-12x)=21

Remove unnecessary parentheses
+6-6x-21-12x=+21

We move all terms containing x to the left and all other terms to the right. 
-6x-12x=+21-6+21

We simplify left and right side of the equation. 
-18x=+36

We divide both sides of the equation by -18 to get x. 
x=-2

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