3a+7+2(3+a)=58

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Solution for 3a+7+2(3+a)=58 equation: 



3a+7+2(3+a)=58

We move all terms to the left:

3a+7+2(3+a)-(58)=0

We add all the numbers together, and all the variables

3a+2(a+3)+7-58=0

We add all the numbers together, and all the variables

3a+2(a+3)-51=0

We multiply parentheses

3a+2a+6-51=0

We add all the numbers together, and all the variables

5a-45=0

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

5a=45

a=45/5

a=9

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