20=4/5r

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Solution for 20=4/5r equation: 



20=4/5r

We move all terms to the left:

20-(4/5r)=0



Domain of the equation: 5r)!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

-(+4/5r)+20=0

We get rid of parentheses

-4/5r+20=0

We multiply all the terms by the denominator


20*5r-4=0

Wy multiply elements

100r-4=0

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

100r=4

r=4/100

r=1/25

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