3(-7a+3)=-21-6a

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Solution for 3(-7a+3)=-21-6a equation:


3(-7a+3)=-21-6a

We simplify the equation to the form, which is simple to understand 
3(-7a+3)=-21-6a

Reorder the terms in parentheses
+(-21a+9)=-21-6a

Remove unnecessary parentheses
-21a+9=-21-6a

We move all terms containing a to the left and all other terms to the right. 
-21a+6a=-21-9

We simplify left and right side of the equation. 
-15a=-30

We divide both sides of the equation by -15 to get a. 
a=2

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