72-90-1/8b=7/8b

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Solution for 72-90-1/8b=7/8b equation: 



72-90-1/8b=7/8b

We move all terms to the left:

72-90-1/8b-(7/8b)=0



Domain of the equation: 8b!=0

b!=0/8

b!=0

b∈R





Domain of the equation: 8b)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

-1/8b-(+7/8b)+72-90=0

We add all the numbers together, and all the variables

-1/8b-(+7/8b)-18=0

We get rid of parentheses

-1/8b-7/8b-18=0

We multiply all the terms by the denominator


-18*8b-1-7=0

We add all the numbers together, and all the variables

-18*8b-8=0

Wy multiply elements

-144b-8=0

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

-144b=8

b=8/-144

b=-1/18

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