3a=2(a+5)+13

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Solution for 3a=2(a+5)+13 equation: 



3a=2(a+5)+13

We move all terms to the left:

3a-(2(a+5)+13)=0



We calculate terms in parentheses: -(2(a+5)+13), so:

2(a+5)+13

We multiply parentheses

2a+10+13

We add all the numbers together, and all the variables

2a+23

Back to the equation:

-(2a+23)



We get rid of parentheses

3a-2a-23=0

We add all the numbers together, and all the variables

a-23=0

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

a=23

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