1/2b-3=21

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Solution for 1/2b-3=21 equation: 



1/2b-3=21

We move all terms to the left:

1/2b-3-(21)=0



Domain of the equation: 2b!=0

b!=0/2

b!=0

b∈R



We add all the numbers together, and all the variables

1/2b-24=0

We multiply all the terms by the denominator


-24*2b+1=0

Wy multiply elements

-48b+1=0

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

-48b=-1

b=-1/-48

b=1/48

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