-4=r/20-5=

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Solution for -4=r/20-5= equation: 



-4=r/20-5=

We move all terms to the left:

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

We get rid of parentheses

-r/20+5-4=0

We multiply all the terms by the denominator


-r+5*20-4*20=0

We add all the numbers together, and all the variables

-1r+20=0

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

-r=-20

r=-20/-1

r=+20

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