-a-4a=15

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Solution for -a-4a=15 equation:


-a-4a=15

We simplify the equation to the form, which is simple to understand 
-a-4a=15

We move all terms containing a to the left and all other terms to the right. 
-1a-4a=+15

We simplify left and right side of the equation. 
-5a=+15

We divide both sides of the equation by -5 to get a. 
a=-3

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