12+4/9r=-12

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Solution for 12+4/9r=-12 equation: 



12+4/9r=-12

We move all terms to the left:

12+4/9r-(-12)=0



Domain of the equation: 9r!=0

r!=0/9

r!=0

r∈R



We add all the numbers together, and all the variables

4/9r+24=0

We multiply all the terms by the denominator


24*9r+4=0

Wy multiply elements

216r+4=0

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

216r=-4

r=-4/216

r=-1/54

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