r+21/4=4

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Solution for r+21/4=4 equation: 



r+21/4=4

We move all terms to the left:

r+21/4-(4)=0

determiningTheFunctionDomain
r-4+21/4=0

We multiply all the terms by the denominator


r*4+21-4*4=0

We add all the numbers together, and all the variables

r*4+5=0

Wy multiply elements

4r+5=0

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

4r=-5

r=-5/4

r=-1+1/4

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