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27=1/9r
We move all terms to the left:
27-(1/9r)=0
Domain of the equation: 9r)!=0We add all the numbers together, and all the variables
r!=0/1
r!=0
r∈R
-(+1/9r)+27=0
We get rid of parentheses
-1/9r+27=0
We multiply all the terms by the denominator
27*9r-1=0
Wy multiply elements
243r-1=0
We move all terms containing r to the left, all other terms to the right
243r=1
r=1/243
r=1/243
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