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

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#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
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,528

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.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#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
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,528

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.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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 tongue

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,528

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.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,528

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.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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 tongue

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,528

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.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

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