4r-9+-2r=39

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Solution for 4r-9+-2r=39 equation: 



4r-9+-2r=39

We move all terms to the left:

4r-9+-2r-(39)=0

determiningTheFunctionDomain
4r-2r-9-39+=0

We add all the numbers together, and all the variables

2r=0

r=0/2

r=0

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