12a-11-9a=1

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Solution for 12a-11-9a=1 equation:


12a-11-9a=1

We simplify the equation to the form, which is simple to understand 
12a-11-9a=1

We move all terms containing a to the left and all other terms to the right. 
+12a-9a=+1+11

We simplify left and right side of the equation. 
+3a=+12

We divide both sides of the equation by 3 to get a. 
a=4

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