Simple: Solve for 'X'

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October 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!
October 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.

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

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

Combine terms and solve......can you finish it?
October 20th 2008, 11:53 AM
whatever

what i have originally is 25, is that right?
October 20th 2008, 12:00 PM
masters

Multiply every term by the LCD which is 30.

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

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

$15x+15=16x+23$

$-x=8$

$\boxed{x=-8}$
October 20th 2008, 12:59 PM
whatever

cheers mate, i had the right idea but I was doing it wrong somehow. nice one

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