+0  
 
+1
349
3
avatar+105 

I have 1 question (14+14-14*14/14)+(15+15*15/15)+(3+3-3*3/3)+

(13+13-13*13/13)+(24+24-24*24/24)= what

off-topic
 Mar 13, 2019
 #1
avatar+8341 
+1

Define \(f(n) = n+n-n\times n \div n\).

Then your expression becomes \(f(14) + f(3)+f(13)+f(24)+15+15\times15\div 15\).

 

Simplifying f(n): \(f(n) = n+n-n\times n\div n = 2n - n = n\).

 

Therefore, the answer of the expression is \(14 + 3 + 13 + 24 + 15 + 15 \times 15 \div 15\), which is 84.

 Mar 13, 2019
 #2
avatar+8341 
0

\(\text{Remarks: In my opinion, the ultimate objective of Math is to express the most complicated things by using simplest methods.}\)

MaxWong  Mar 13, 2019
 #3
avatar+105 
+1

good job

 Mar 14, 2019

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