7b-9=2b+1

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Solution for 7b-9=2b+1 equation: 



7b-9=2b+1

We move all terms to the left:

7b-9-(2b+1)=0

We get rid of parentheses

7b-2b-1-9=0

We add all the numbers together, and all the variables

5b-10=0

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

5b=10

b=10/5

b=2

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