3(2-x)-21=4x+6

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Solution for 3(2-x)-21=4x+6 equation:


3(2-x)-21=4x+6

We simplify the equation to the form, which is simple to understand 
3(2-x)-21=4x+6

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

Remove unnecessary parentheses
+6-3x-21=+4x+6

We move all terms containing x to the left and all other terms to the right. 
-3x-4x=+6-6+21

We simplify left and right side of the equation. 
-7x=+21

We divide both sides of the equation by -7 to get x. 
x=-3

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