r/4-5=-21

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



r/4-5=-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

r/4+16=0

We multiply all the terms by the denominator


r+16*4=0

We add all the numbers together, and all the variables

r+64=0

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

r=-64

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