a+a+3+a-2+3(a+3)=87

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Solution for a+a+3+a-2+3(a+3)=87 equation: 



a+a+3+a-2+3(a+3)=87

We move all terms to the left:

a+a+3+a-2+3(a+3)-(87)=0

We add all the numbers together, and all the variables

3a+3(a+3)-86=0

We multiply parentheses

3a+3a+9-86=0

We add all the numbers together, and all the variables

6a-77=0

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

6a=77

a=77/6

a=12+5/6

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