1-3a=-7+a

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Solution for 1-3a=-7+a equation: 



1-3a=-7+a

We move all terms to the left:

1-3a-(-7+a)=0

We add all the numbers together, and all the variables

-3a-(a-7)+1=0

We get rid of parentheses

-3a-a+7+1=0

We add all the numbers together, and all the variables

-4a+8=0

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

-4a=-8

a=-8/-4

a=+2

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