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1/4=1/2(r+10)
We move all terms to the left:
1/4-(1/2(r+10))=0
Domain of the equation: 2(r+10))!=0We calculate fractions
r∈R
()/8r+(2rr/8r=0
We multiply all the terms by the denominator
(2rr+()=0
We calculate terms in parentheses: +(2rr+(), so:r=0/1
2rr+(
We add all the numbers together, and all the variables
2rr
Back to the equation:
+(2rr)
r=0
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