(2+a)*(9+6)=43+2*(3+1)*(a+1)

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Solution for (2+a)*(9+6)=43+2*(3+1)*(a+1) equation:


(2+a)*(9+6)=43+2*(3+1)*(a+1)

We simplify the equation to the form, which is simple to understand 
(2+a)*(9+6)=43+2*(3+1)*(a+1)

Reorder the terms in parentheses
multiplication of parentheses
(+30+15a)=43+2*(+4)*(a+1)



Remove unnecessary parentheses
+30+15a=43+2*(+4)*(a+1)

Reorder the terms in parentheses
multiplication of parentheses
+30+15a=43+2*(+4a+4)



Reorder the terms in parentheses
+30+15a=43+(+8a+8)

Remove unnecessary parentheses
+30+15a=+43+8a+8

We move all terms containing a to the left and all other terms to the right. 
+15a-8a=+43+8-30

We simplify left and right side of the equation. 
+7a=+21

We divide both sides of the equation by 7 to get a. 
a=3

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