-13-7a=4a+5-8a

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Solution for -13-7a=4a+5-8a equation: 



-13-7a=4a+5-8a

We move all terms to the left:

-13-7a-(4a+5-8a)=0

We add all the numbers together, and all the variables

-7a-(-4a+5)-13=0

We get rid of parentheses

-7a+4a-5-13=0

We add all the numbers together, and all the variables

-3a-18=0

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

-3a=18

a=18/-3

a=-6

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