-4=r-5/20

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



-4=r-5/20

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-r-4+5/20=0

We multiply all the terms by the denominator


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

We add all the numbers together, and all the variables

-r*20-75=0

Wy multiply elements

-20r-75=0

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

-20r=75

r=75/-20

r=-3+3/4

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