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

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


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

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

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

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

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

We simplify left and right side of the equation. 
+3x=+12

We divide both sides of the equation by 03 to get x. 
x=4

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