4/7b=20

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Solution for 4/7b=20 equation: 



4/7b=20

We move all terms to the left:

4/7b-(20)=0



Domain of the equation: 7b!=0

b!=0/7

b!=0

b∈R



We multiply all the terms by the denominator


-20*7b+4=0

Wy multiply elements

-140b+4=0

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

-140b=-4

b=-4/-140

b=1/35

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