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-1/7r=-2
We move all terms to the left:
-1/7r-(-2)=0
Domain of the equation: 7r!=0We add all the numbers together, and all the variables
r!=0/7
r!=0
r∈R
-1/7r+2=0
We multiply all the terms by the denominator
2*7r-1=0
Wy multiply elements
14r-1=0
We move all terms containing r to the left, all other terms to the right
14r=1
r=1/14
r=1/14
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