2-7a-8=15-5a

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Solution for 2-7a-8=15-5a equation: 



2-7a-8=15-5a

We move all terms to the left:

2-7a-8-(15-5a)=0

We add all the numbers together, and all the variables

-7a-(-5a+15)+2-8=0

We add all the numbers together, and all the variables

-7a-(-5a+15)-6=0

We get rid of parentheses

-7a+5a-15-6=0

We add all the numbers together, and all the variables

-2a-21=0

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

-2a=21

a=21/-2

a=-10+1/2

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