9-a=-15

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Solution for 9-a=-15 equation:


9-a=-15

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

We move all terms containing a to the left and all other terms to the right. 
-1a=-15-9

We simplify left and right side of the equation. 
-1a=-24

We divide both sides of the equation by -1 to get a. 
a=24

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