Adding mistake! lol

you said:

"2x + 3x = 6 combine like terms;

6x = 6"

!!!!!!!!!!!!!!!!!!!!!

its meant to be

5x = 6

x = 1.2

lol

so for the most part youwere correct just remember to recheck your calculation

Results 1 to 3 of 3

- December 9th 2007, 11:08 AM #1

- Joined
- Dec 2007
- Posts
- 98

## ....ookaieeeeee

I just worked out a problem that gave me and answer of 1 but when checked with the correct answer it was 1.2......Here is the problem

Erin can paint a room in 3hrs and her hubby can do it in 2hrs, how long will it take both to paint the room together?! (simplified the question)

Ok! so knowing that

Erin=3x and Hubby=2x the problem then is written like this....(right?)

1x over 3 plus 1x over 2 equals 1

+

1x__1x__= 1

3.....2

ok now the LCD is 6 and then multiply all by (6)

(6)__1x__+ (6)__1x__= 1(6)

3..........2

cancel the 6 and the 3 = 2 and the 6 and the 2 = 3 right!?

so now we have

2x + 3x = 6 combine like terms;

6x = 6

and then solve for

x=1

so far so good or did I dushbag it somewhere?!

- December 9th 2007, 11:19 AM #2

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- May 2007
- Posts
- 60

- December 9th 2007, 12:10 PM #3

- Joined
- Dec 2007
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- 98