Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #26 2012-11-28 08:53:54

BarandaMan
Guest

### Re: Difficult algebra manipulation help!

Ok thanks I got the same as you when I just expanded this.

## #27 2012-11-28 09:00:04

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 107,697

### Re: Difficult algebra manipulation help!

Hi;

You do not need to copy my posts. It is not necessary and it is extra work.

Take the first equation and solve for q^H. You get:

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #28 2012-11-28 09:06:51

BarandaMan
Guest

### Re: Difficult algebra manipulation help!

Shouldn't it be 3b-ub on the bottom ?

## #29 2012-11-28 09:12:47

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 107,697

### Re: Difficult algebra manipulation help!

Hi;

No, we are not done yet. I just solved for q^H, it is not the final answer.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #30 2012-11-28 09:17:11

BarandaMan
Guest

### Re: Difficult algebra manipulation help!

I know, but on the thing you posted, the denominator you got ub-3b and I have 3b-ub

## #31 2012-11-28 09:25:25

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 107,697

### Re: Difficult algebra manipulation help!

You should notice that I have a q^L in the partial answer. That is because it is not done yet.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #32 2012-11-28 09:28:48

BarandaMan
Guest

### Re: Difficult algebra manipulation help!

I know we are not done, but on the expression you just posted for qh.... at the bottom you have b(u-3) and I get b(3-u), this is what I am talking about.

## #33 2012-11-28 09:33:18

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 107,697

### Re: Difficult algebra manipulation help!

You mean on the step I just did or on the final answer?

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

## #34 2012-11-28 09:37:25

BarandaMan
Guest

### Re: Difficult algebra manipulation help!

bobbym wrote:

You mean on the step I just did or on the final answer?

On the step you just did

## #35 2012-11-28 09:45:05

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 107,697

### Re: Difficult algebra manipulation help!

Could just be a sign change. Let me see your answer.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline