18/b=30/5.

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Solution for 18/b=30/5. equation: 



18/b=30/5.

We move all terms to the left:

18/b-(30/5.)=0



Domain of the equation: b!=0

b∈R



We add all the numbers together, and all the variables

18/b-6=0

We multiply all the terms by the denominator


-6*b+18=0

We add all the numbers together, and all the variables

-6b+18=0

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

-6b=-18

b=-18/-6

b=+3

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