20/5b=4

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Solution for 20/5b=4 equation: 



20/5b=4

We move all terms to the left:

20/5b-(4)=0



Domain of the equation: 5b!=0

b!=0/5

b!=0

b∈R



We multiply all the terms by the denominator


-4*5b+20=0

Wy multiply elements

-20b+20=0

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

-20b=-20

b=-20/-20

b=1

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