1/9*2r=-3

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Solution for 1/9*2r=-3 equation: 



1/9*2r=-3

We move all terms to the left:

1/9*2r-(-3)=0



Domain of the equation: 9*2r!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

1/9*2r+3=0

We multiply all the terms by the denominator


3*9*2r+1=0

Wy multiply elements

54r*2+1=0

Wy multiply elements

108r+1=0

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

108r=-1

r=-1/108

r=-1/108

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