3a=-3(-13-3a)

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Solution for 3a=-3(-13-3a) equation:


3a=-3(-13-3a)

We simplify the equation to the form, which is simple to understand 
3a=-3(-13-3a)

Reorder the terms in parentheses
3a=+(+39+9a)

Remove unnecessary parentheses
+3a=+39+9a

We move all terms containing a to the left and all other terms to the right. 
+3a-9a=+39

We simplify left and right side of the equation. 
-6a=+39

We divide both sides of the equation by -6 to get a. 
a=-6.5

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