-1a+13=a-1

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



-1a+13=a-1

We move all terms to the left:

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

We get rid of parentheses

-1a-a+1+13=0

We add all the numbers together, and all the variables

-2a+14=0

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

-2a=-14

a=-14/-2

a=+7

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