# SOLUTION: How do you solve this expression: if f(x+5)=f(x)+5, and f(5)=10 then f(50)= ?

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 Click here to see ALL problems on Functions Question 49247: How do you solve this expression: if f(x+5)=f(x)+5, and f(5)=10 then f(50)= ?Answer by venugopalramana(3286)   (Show Source): You can put this solution on YOUR website!How do you solve this expression: if f(x+5)=f(x)+5, and f(5)=10 then f(50)= ? put x=5 first f(5+5)=f(5)+5=10+5 f(10)=15 now put x=10....to get....f(10+5)=f(15)=15+5=20..we can proceed forward like this to get f(50) similarly we get proceeding backwards.. f(50)=f(45+5)=f(45)+5=f(40)+2*5=f(35)+3*5=f(30)+4*5=f(25)+5*5=f(20)+6*5=f(15)+7*5 =f(10)+8*5=f(5)+9*5=10+45=55