9=-9a

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Solution for 9=-9a equation:


9=-9a

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

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

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

We divide both sides of the equation by 09 to get a. 
a=-1

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