-9(-5+a)=-90

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Solution for -9(-5+a)=-90 equation:


-9(-5+a)=-90

We simplify the equation to the form, which is simple to understand 
-9(-5+a)=-90

Reorder the terms in parentheses
+(+45-9a)=-90

Remove unnecessary parentheses
+45-9a=-90

We move all terms containing a to the left and all other terms to the right. 
-9a=-90-45

We simplify left and right side of the equation. 
-9a=-135

We divide both sides of the equation by -9 to get a. 
a=15

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