1/2r+4=20

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Solution for 1/2r+4=20 equation: 



1/2r+4=20

We move all terms to the left:

1/2r+4-(20)=0



Domain of the equation: 2r!=0

r!=0/2

r!=0

r∈R



We add all the numbers together, and all the variables

1/2r-16=0

We multiply all the terms by the denominator


-16*2r+1=0

Wy multiply elements

-32r+1=0

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

-32r=-1

r=-1/-32

r=1/32

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