13+8a=1+5a+7a

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Solution for 13+8a=1+5a+7a equation: 



13+8a=1+5a+7a

We move all terms to the left:

13+8a-(1+5a+7a)=0

We add all the numbers together, and all the variables

8a-(12a+1)+13=0

We get rid of parentheses

8a-12a-1+13=0

We add all the numbers together, and all the variables

-4a+12=0

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

-4a=-12

a=-12/-4

a=+3

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