-21/4=r-5/4

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Solution for -21/4=r-5/4 equation: 



-21/4=r-5/4

We move all terms to the left:

-21/4-(r-5/4)=0

We add all the numbers together, and all the variables

-(+r-5/4)-21/4=0

We get rid of parentheses

-r+5/4-21/4=0

We multiply all the terms by the denominator


-r*4+5-21=0

We add all the numbers together, and all the variables

-r*4-16=0

Wy multiply elements

-4r-16=0

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

-4r=16

r=16/-4

r=-4

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