7b-12=b+18

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Solution for 7b-12=b+18 equation: 



7b-12=b+18

We move all terms to the left:

7b-12-(b+18)=0

We get rid of parentheses

7b-b-18-12=0

We add all the numbers together, and all the variables

6b-30=0

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

6b=30

b=30/6

b=5

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