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

You are not logged in.

- Topics: Active | Unanswered

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Okay, Im here. And Bobbym, really haven't you ANY suggestions on how to begin these equations ? I'm feeling that there is no methodology in what Im doing...

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

It does take experience to do some of these. You gain that experience by doing them. The beginning stuff is right here:

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Yes, I guess I'll still keep practicing. thanks

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

How about this one here:

Can you get c as the subject?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

c=b+2/a

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

That is correct!

Make b the subject.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Just a question, If I distribute the b on the right, I must also distribute it for 2 ? (Must I distribute to all the right side of the equation ?

1/a=2b ?

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

Hi;

I am not following you. What are you trying to do?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Im trying to isolate b on the right of the equation, but must I also distribute the B to the whole right side of the equation ?

*b 1/a=1/b+2 *b (to the 1/b AND to the 2)

which gives :

b/a=2b

?

*Last edited by Al-Allo (2013-03-10 07:15:06)*

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Foget my question, heres my answer b=2a

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

Hi;

That is not correct. Please show me your first step.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

*b 1/a= 1b +2 *b

b/a=+2

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

The left side is correct.

When you multiply the right side by b, that means everything on the right gets multiplied by b. Try it again.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**Al-Allo****Member**- Registered: 2012-08-23
- Posts: 324

Sorry Bobbym, Ive got other to finish. Il try it on my own, Im feelng that Im lacking knowledge in algebra, maybe I should do a review ^^

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,364

You only need some practice on that type.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline