4b-5b=7

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Solution for 4b-5b=7 equation: 



4b-5b=7

We move all terms to the left:

4b-5b-(7)=0

We add all the numbers together, and all the variables

-1b-7=0

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

-b=7

b=7/-1

b=-7

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