3b-9=4b+8

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Solution for 3b-9=4b+8 equation: 



3b-9=4b+8

We move all terms to the left:

3b-9-(4b+8)=0

We get rid of parentheses

3b-4b-8-9=0

We add all the numbers together, and all the variables

-1b-17=0

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

-b=17

b=17/-1

b=-17

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