7b+2=3b+30

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Solution for 7b+2=3b+30 equation: 



7b+2=3b+30

We move all terms to the left:

7b+2-(3b+30)=0

We get rid of parentheses

7b-3b-30+2=0

We add all the numbers together, and all the variables

4b-28=0

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

4b=28

b=28/4

b=7

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