[Resolved] Easy Question

[The Hobo]

For some reason I can't think. Is there a way to solve this?

 2 x
----- = 100
 x-3

[The Hobo]

I got x = 3.061 (rounded) for an answer. Is that right?

[SilverSprite]

2 x
----- = 100
x-3

2(x-3)+6
----------- = 100
x-3

6
2+ --- =100
x-3

6
--- = 98
x-3

x-3=6/98

x=3/49 + 3

[SilverSprite]

The third line is messed up for some reason. Dont know why. But its

6
--- + 2 =100
x-3

[bugzpodder]

where did you get the second line from?

[SilverSprite]

subtracting 6 then adding 6 (or adding 0)

[bugzpodder]

yeah... ok...

or you can just multiply both sides by x-3

you get:

2x=100x-300
300=98x
x=300/98 or 150/49 or 3/49+3

[The Hobo]

I did it:

2x / (x -3) = 100

(2x / (x - 3)) * (x - 3) = 100(x -3)

2x = 100x - 300

300 = 98x

3.0612 = x

[The Hobo]

Originally posted by bugzpodder
yeah... ok...

or you can just multiply both sides by x-3

you get:

2x=100x-300
300=98x
x=300/98 or 150/49 or 3/49+3

haha. that's how I did it.

[The Hobo]

Don't know why I found it so confusing.

[SilverSprite]

:P I have fun doing it the other way. Don't spoil it for me.

[The Hobo]

Originally posted by SilverSprite
2 x
----- = 100
x-3

2(x-3)+6
----------- = 100
x-3

6
2+ --- =100
x-3

6
--- = 98
x-3

x-3=6/98

x=3/49 + 3

I don't understand how you went from

2(x-3)+6
----------- = 100
x-3

to

6
--- + 2 =100
x-3



2(x-3) + 6 = 2x-6 + 6 = 2x

[marnitzg]

2(x-3)+6
----------- 
x-3

2(x-3) +    6
--------   ---
x-3        x-3

2 + 6
   --
   x-3