(3+a)+8=-13

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Solution for (3+a)+8=-13 equation: 



(3+a)+8=-13

We move all terms to the left:

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

We add all the numbers together, and all the variables

(a+3)+8-(-13)=0

We add all the numbers together, and all the variables

(a+3)+21=0

We get rid of parentheses

a+3+21=0

We add all the numbers together, and all the variables

a+24=0

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

a=-24

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