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2/5r=-22
We move all terms to the left:
2/5r-(-22)=0
Domain of the equation: 5r!=0We add all the numbers together, and all the variables
r!=0/5
r!=0
r∈R
2/5r+22=0
We multiply all the terms by the denominator
22*5r+2=0
Wy multiply elements
110r+2=0
We move all terms containing r to the left, all other terms to the right
110r=-2
r=-2/110
r=-1/55
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