a-3a=6-12

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Solution for a-3a=6-12 equation:


a-3a=6-12

We simplify the equation to the form, which is simple to understand 
a-3a=6-12

We move all terms containing a to the left and all other terms to the right. 
+1a-3a=+6-12

We simplify left and right side of the equation. 
-2a=-6

We divide both sides of the equation by -2 to get a. 
a=3

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