21/5r=11

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Solution for 21/5r=11 equation: 



21/5r=11

We move all terms to the left:

21/5r-(11)=0



Domain of the equation: 5r!=0

r!=0/5

r!=0

r∈R



We multiply all the terms by the denominator


-11*5r+21=0

Wy multiply elements

-55r+21=0

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

-55r=-21

r=-21/-55

r=21/55

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