20=r/100

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Solution for 20=r/100 equation: 



20=r/100

We move all terms to the left:

20-(r/100)=0

We add all the numbers together, and all the variables

-(+r/100)+20=0

We get rid of parentheses

-r/100+20=0

We multiply all the terms by the denominator


-r+20*100=0

We add all the numbers together, and all the variables

-1r+2000=0

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

-r=-2000

r=-2000/-1

r=+2000

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