1+-1.5r=9

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Solution for 1+-1.5r=9 equation: 



1+-1.5r=9

We move all terms to the left:

1+-1.5r-(9)=0

determiningTheFunctionDomain
-1.5r+1-9+=0

We add all the numbers together, and all the variables

-1.5r=0

r=0/-1.5

r=0

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