4-9b=7

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Solution for 4-9b=7 equation: 



4-9b=7

We move all terms to the left:

4-9b-(7)=0

We add all the numbers together, and all the variables

-9b-3=0

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

-9b=3

b=3/-9

b=-1/3

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