34=13+7a

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Solution for 34=13+7a equation: 



34=13+7a

We move all terms to the left:

34-(13+7a)=0

We add all the numbers together, and all the variables

-(7a+13)+34=0

We get rid of parentheses

-7a-13+34=0

We add all the numbers together, and all the variables

-7a+21=0

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

-7a=-21

a=-21/-7

a=+3

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