3a-9=3(9-3a)

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Solution for 3a-9=3(9-3a) equation:


3a-9=3(9-3a)

We simplify the equation to the form, which is simple to understand 
3a-9=3(9-3a)

Reorder the terms in parentheses
3a-9=+(+27-9a)

Remove unnecessary parentheses
+3a-9=+27-9a

We move all terms containing a to the left and all other terms to the right. 
+3a+9a=+27+9

We simplify left and right side of the equation. 
+12a=+36

We divide both sides of the equation by 12 to get a. 
a=3

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