13-5a=-7a+8

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



13-5a=-7a+8

We move all terms to the left:

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

We get rid of parentheses

-5a+7a-8+13=0

We add all the numbers together, and all the variables

2a+5=0

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

2a=-5

a=-5/2

a=-2+1/2

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