8+5=a+a

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Solution for 8+5=a+a equation: 



8+5=a+a

We move all terms to the left:

8+5-(a+a)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-(+2a)+13=0

We get rid of parentheses

-2a+13=0

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

-2a=-13

a=-13/-2

a=6+1/2

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