r+9=2(7)=

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Solution for r+9=2(7)= equation: 



r+9=2(7)=

We move all terms to the left:

r+9-(2(7))=0

determiningTheFunctionDomain
r+9-27=0

We add all the numbers together, and all the variables

r-18=0

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

r=18

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