57=3a+12

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Solution for 57=3a+12 equation:


57=3a+12

We simplify the equation to the form, which is simple to understand 
57=3a+12

We move all terms containing a to the left and all other terms to the right. 
-3a=+12-57

We simplify left and right side of the equation. 
-3a=-45

We divide both sides of the equation by -03 to get a. 
a=15

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