9+a=-3

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Solution for 9+a=-3 equation:


9+a=-3

We simplify the equation to the form, which is simple to understand 
9+a=-3

We move all terms containing a to the left and all other terms to the right. 
+1a=-3-9

We simplify left and right side of the equation. 
+1a=-12

We divide both sides of the equation by 1 to get a. 
a=-12

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