15b+40=50b+120b=

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Solution for 15b+40=50b+120b= equation: 



15b+40=50b+120b=

We move all terms to the left:

15b+40-(50b+120b)=0

We add all the numbers together, and all the variables

15b-(+170b)+40=0

We get rid of parentheses

15b-170b+40=0

We add all the numbers together, and all the variables

-155b+40=0

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

-155b=-40

b=-40/-155

b=8/31

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