12a-72=12(a-9)

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Solution for 12a-72=12(a-9) equation:


12a-72=12(a-9)

We simplify the equation to the form, which is simple to understand 
12a-72=12(a-9)

Reorder the terms in parentheses
12a-72=+(+12a-108)

Remove unnecessary parentheses
+12a-72=+12a-108

We move all terms containing a to the left and all other terms to the right. 
+12a-12a=-108+72

We simplify left and right side of the equation. 
a=-36

0=-36

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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