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 add all the numbers together, and all the variables

21/5r+11=0

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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