4-12a+7a=9

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Solution for 4-12a+7a=9 equation:


4-12a+7a=9

We simplify the equation to the form, which is simple to understand 
4-12a+7a=9

We move all terms containing a to the left and all other terms to the right. 
-12a+7a=+9-4

We simplify left and right side of the equation. 
-5a=+5

We divide both sides of the equation by -5 to get a. 
a=-1

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