7/5r+21=-21

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Solution for 7/5r+21=-21 equation: 



7/5r+21=-21

We move all terms to the left:

7/5r+21-(-21)=0



Domain of the equation: 5r!=0

r!=0/5

r!=0

r∈R



We add all the numbers together, and all the variables

7/5r+42=0

We multiply all the terms by the denominator


42*5r+7=0

Wy multiply elements

210r+7=0

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

210r=-7

r=-7/210

r=-1/30

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