-3(4a+5)=-99

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Solution for -3(4a+5)=-99 equation:


-3(4a+5)=-99

We simplify the equation to the form, which is simple to understand 
-3(4a+5)=-99

Reorder the terms in parentheses
+(-12a-15)=-99

Remove unnecessary parentheses
-12a-15=-99

We move all terms containing a to the left and all other terms to the right. 
-12a=-99+15

We simplify left and right side of the equation. 
-12a=-84

We divide both sides of the equation by -12 to get a. 
a=7

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