4/9r-9=-12

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



4/9r-9=-12

We move all terms to the left:

4/9r-9-(-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+3=0

We multiply all the terms by the denominator


3*9r+4=0

Wy multiply elements

27r+4=0

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

27r=-4

r=-4/27

r=-4/27

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