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r-89/7=1
We move all terms to the left:
r-89/7-(1)=0
determiningTheFunctionDomain r-1-89/7=0
We multiply all the terms by the denominator
r*7-89-1*7=0
We add all the numbers together, and all the variables
r*7-96=0
Wy multiply elements
7r-96=0
We move all terms containing r to the left, all other terms to the right
7r=96
r=96/7
r=13+5/7
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