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Question Number 165160 by mathlove last updated on 26/Jan/22
f(x+f(x))=3f(x)andf(−1)=7faindf(27)=?
Answered by Rasheed.Sindhi last updated on 26/Jan/22
x=−1:f(−1+f(−1))=3f(−1)f(−1+7)=3(7)f(6)=21x=6:f(6+f(6))=3f(6)⇒f(6+21)=3(21)=63⇒f(27)=63
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