# Simple: Solve for 'X'

• Oct 20th 2008, 11:26 AM
whatever
Simple: Solve for 'X'
i have found an answer to this but i would like to know if i am right. what do ye get?

Code:

X+1            2X+1            X + 2 ___      =      ____      +  _____  2              10              3
Solve for X!
• Oct 20th 2008, 11:38 AM
masters
Quote:

Originally Posted by whatever
i have found an answer to this but i would like to know if i am right. what do ye get?

Code:

X+1            2X+1            X + 2 ___      =      ____      +  _____  2              10              3
Solve for X!

Multiply every term by the LCD which is 30.

$\displaystyle 30\left(\frac{x+1}{2}\right)=30\left(\frac{2x+1}{1 0}\right)+30\left(\frac{x+2}{3}\right)$

$\displaystyle 15x+15=6x+3+10x+20$

Combine terms and solve......can you finish it?
• Oct 20th 2008, 11:53 AM
whatever
what i have originally is 25, is that right?
• Oct 20th 2008, 12:00 PM
masters
Multiply every term by the LCD which is 30.

$\displaystyle 30\left(\frac{x+1}{2}\right)=30\left(\frac{2x+1}{1 0}\right)+30\left(\frac{x+2}{3}\right)$

$\displaystyle 15x+15=6x+3+10x+20$

$\displaystyle 15x+15=16x+23$

$\displaystyle -x=8$

$\displaystyle \boxed{x=-8}$
• Oct 20th 2008, 12:59 PM
whatever
cheers mate, i had the right idea but I was doing it wrong somehow. nice one