-3=-7+a/3

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Solution for -3=-7+a/3 equation: 



-3=-7+a/3

We move all terms to the left:

-3-(-7+a/3)=0

We add all the numbers together, and all the variables

-(a/3-7)-3=0

We get rid of parentheses

-a/3+7-3=0

We multiply all the terms by the denominator


-a+7*3-3*3=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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