3(5+a)=(7-a)9

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Solution for 3(5+a)=(7-a)9 equation:


3(5+a)=(7-a)9

We simplify the equation to the form, which is simple to understand 
3(5+a)=(7-a)9

Reorder the terms in parentheses
+(+15+3a)=(7-a)*9

Remove unnecessary parentheses
+15+3a=+(+7-a+)+*9

Reorder the terms in parentheses
+15+3a=(+63-9a)

Remove unnecessary parentheses
+15+3a=+63-9a

We move all terms containing a to the left and all other terms to the right. 
+3a+9a=+63-15

We simplify left and right side of the equation. 
+12a=+48

We divide both sides of the equation by 12 to get a. 
a=4

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