8-(-a)=13

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Solution for 8-(-a)=13 equation: 



8-(-a)=13

We move all terms to the left:

8-(-a)-(13)=0

We add all the numbers together, and all the variables

-(-1a)+8-13=0

We add all the numbers together, and all the variables

-(-1a)-5=0

We get rid of parentheses

1a-5=0

We add all the numbers together, and all the variables

a-5=0

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

a=5

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