
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
February 11th, 2016, 03:28 PM  #1 
Senior Member Joined: Feb 2016 From: seattle Posts: 342 Thanks: 10  word problem. just not sure how to write words as a formula
One number is three less than four times another. If their sum is increased by six, the result is twentyeight. Find the numbers. The smaller of the numbers is and the larger is . So is that x3+4(y+6)=28 ? Thanks Last edited by skipjack; February 13th, 2016 at 09:28 PM. 
February 11th, 2016, 03:42 PM  #2  
Math Team Joined: Jul 2011 From: Texas Posts: 2,507 Thanks: 1234 
x = one number y = another number Quote:
Quote:
solve the system of two equations  
February 11th, 2016, 04:27 PM  #3  
Senior Member Joined: Jul 2014 From: भारत Posts: 1,178 Thanks: 230  Quote:
Let the smaller number be $x$. The bigger number is $4x3$. According to the question, $6+ {\large[} x + (4x3) {\large]} = 28$ Solving for $x$, we get $x=5$ So, the smaller number is 5. The bigger number is $4x3=17$. Hence the numbers are 5 and 17. Last edited by skipjack; February 13th, 2016 at 09:27 PM.  
February 13th, 2016, 11:14 AM  #4 
Senior Member Joined: Feb 2016 From: seattle Posts: 342 Thanks: 10 
Thanks to you both, it still confuses me, I will just have to remember once solving for x I need to then redo the equation once I have figured out what x was Prakhar very impressed by your being able to do it with your one variable formula! 
February 13th, 2016, 08:59 PM  #5 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 9,011 Thanks: 620  

Tags 
formula, problem, word, words, write 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Math, use my head to calculate, or write down the formula?  bqeuux  Math  2  February 9th, 2016 09:41 AM 
Quadratic formula word problem  LinkII08  Algebra  2  May 13th, 2010 01:41 PM 
word problem quadratic formula  LightstevOo  Algebra  2  January 18th, 2010 05:25 PM 
word problem quadratic formula  LightstevOo  Algebra  4  January 18th, 2010 04:50 PM 