3b=9b-9*18

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Solution for 3b=9b-9*18 equation: 



3b=9b-9*18

We move all terms to the left:

3b-(9b-9*18)=0

We add all the numbers together, and all the variables

3b-(9b-162)=0

We get rid of parentheses

3b-9b+162=0

We add all the numbers together, and all the variables

-6b+162=0

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

-6b=-162

b=-162/-6

b=+27

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