-1=-2+a/12

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Solution for -1=-2+a/12 equation: 



-1=-2+a/12

We move all terms to the left:

-1-(-2+a/12)=0

We add all the numbers together, and all the variables

-(a/12-2)-1=0

We get rid of parentheses

-a/12+2-1=0

We multiply all the terms by the denominator


-a+2*12-1*12=0

We add all the numbers together, and all the variables

-1a+12=0

We move all terms containing a to the left, all other terms to the right

-a=-12

a=-12/-1

a=+12

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