5b-18=7b+12

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Solution for 5b-18=7b+12 equation: 



5b-18=7b+12

We move all terms to the left:

5b-18-(7b+12)=0

We get rid of parentheses

5b-7b-12-18=0

We add all the numbers together, and all the variables

-2b-30=0

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

-2b=30

b=30/-2

b=-15

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