April 28th, 2017, 12:06 PM  #1 
Newbie Joined: Apr 2017 From: brasil Posts: 12 Thanks: 0  aplicated math
se der 12 a cada garoto, ficarei ainda com 60 . Para dar 15 a cada um precisarei de mais 6. Quantos sao os garotos? (12x+60=15x6)
Last edited by yury; April 28th, 2017 at 12:30 PM. 
April 28th, 2017, 12:10 PM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,572 Thanks: 2568 Math Focus: Mainly analysis and algebra 
Correct so far. What is $x$?

April 28th, 2017, 12:44 PM  #3 
Newbie Joined: Apr 2017 From: brasil Posts: 12 Thanks: 0 
quantos garotos são?

April 29th, 2017, 01:37 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,116 Thanks: 1910 
x = 22 (For the other problem, 105 stamps.) 

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