(7a-4)-(9a+1)=30

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Solution for (7a-4)-(9a+1)=30 equation:


(7a-4)-(9a+1)=30

We simplify the equation to the form, which is simple to understand 
(7a-4)-(9a+1)=30

Remove unnecessary parentheses
7a-4-(9a+1)=30

Remove unnecessary parentheses
7a-4-9a-1=30

We move all terms containing a to the left and all other terms to the right. 
+7a-9a=+30+4+1

We simplify left and right side of the equation. 
-2a=+35

We divide both sides of the equation by -2 to get a. 
a=-17.5

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