-12a+9a=-3a

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Solution for -12a+9a=-3a equation:


-12a+9a=-3a

We simplify the equation to the form, which is simple to understand 
-12a+9a=-3a

We move all terms containing a to the left and all other terms to the right. 
-12a+9a+3a=0

We simplify left and right side of the equation. 
a=0

0=0

This equation is an identity, so all real numbers are solutions.

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