4=9-11b

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Solution for 4=9-11b equation: 



4=9-11b

We move all terms to the left:

4-(9-11b)=0

We add all the numbers together, and all the variables

-(-11b+9)+4=0

We get rid of parentheses

11b-9+4=0

We add all the numbers together, and all the variables

11b-5=0

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

11b=5

b=5/11

b=5/11

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