3a=13+2a

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Solution for 3a=13+2a equation: 



3a=13+2a

We move all terms to the left:

3a-(13+2a)=0

We add all the numbers together, and all the variables

3a-(2a+13)=0

We get rid of parentheses

3a-2a-13=0

We add all the numbers together, and all the variables

a-13=0

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

a=13

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