a+1+6a=13-7a

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Solution for a+1+6a=13-7a equation: 



a+1+6a=13-7a

We move all terms to the left:

a+1+6a-(13-7a)=0

We add all the numbers together, and all the variables

a+6a-(-7a+13)+1=0

We add all the numbers together, and all the variables

7a-(-7a+13)+1=0

We get rid of parentheses

7a+7a-13+1=0

We add all the numbers together, and all the variables

14a-12=0

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

14a=12

a=12/14

a=6/7

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