3b+4=4b-5

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Solution for 3b+4=4b-5 equation: 



3b+4=4b-5

We move all terms to the left:

3b+4-(4b-5)=0

We get rid of parentheses

3b-4b+5+4=0

We add all the numbers together, and all the variables

-1b+9=0

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

-b=-9

b=-9/-1

b=+9

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