My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
September 20th, 2009, 02:38 PM   #1
Newbie
 
Joined: Sep 2009

Posts: 1
Thanks: 0

Formula to always get 28

I need to create a formula where the user would start with x and do at least 4 steps (multiplication, division or subtraction... no *0 allowed) to that number and always get 28. For example
x = any number
x+5 = n
2n+10 = y
2y+ 6 = z
final step
z+3 = 28

obviously that is nor correct.

Thank you!
djx18 is offline  
 
September 20th, 2009, 05:25 PM   #2
Global Moderator
 
Joined: Dec 2006

Posts: 20,828
Thanks: 2160

x = any number
Subtract the number from itself and then add 1: x - x + 1 = 1 = n
Multiply the result by 2 and then add 10: 2n + 10 = 2(1) + 10 = 12 = y
Subtract -2 from the result: y - (-2) = 12 + 2 = 14 = z
Multiply the result by 2: 2z = 2(14) = 28
skipjack is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
formula



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Formula Help NuNu_dagobah Computer Science 4 January 8th, 2013 07:31 AM
My new formula for pi(x) nsrmsm Number Theory 7 October 15th, 2012 05:36 AM
why we use this formula r-soy Physics 3 December 23rd, 2010 08:54 PM
De Moivre's formula and Newton's binomial formula agro Probability and Statistics 3 August 27th, 2009 06:17 AM
Formula Help NuNu_dagobah Abstract Algebra 0 December 31st, 1969 04:00 PM





Copyright © 2019 My Math Forum. All rights reserved.