Math Is Fun Forum

Ironsoul

Member

Registered: 2011-02-15

Posts: 12

Inequalities Algebraic Problem

Hey, so I've done this question a few times, and keep getting the same wrong answer, so I must be doing something wrong.

I don't really know how to write it yet on these forums, so I'll give you a drawing instead.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Inequalities Algebraic Problem

Hi Ironsoul;

I combined the LHS

Can you handle it now?

---

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.

Ironsoul

Member

Registered: 2011-02-15

Posts: 12

Re: Inequalities Algebraic Problem

Hmm yes, I think so, I'm not entirely sure how you combined it, specifically as to how you got the +7 on the LHS. But I think it has something to do with double negatives = positive.

Thanks for that, I can see how I can get the correct answer now.

Last edited by Ironsoul (2011-02-15 16:32:48)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Inequalities Algebraic Problem

Hi Ironsoul;

---

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.

Ironsoul

Member

Registered: 2011-02-15

Posts: 12

Re: Inequalities Algebraic Problem

Awesome, thanks.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Inequalities Algebraic Problem

Is that the answer you wanted?

---

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.

Ironsoul

Member

Registered: 2011-02-15

Posts: 12

Re: Inequalities Algebraic Problem

yes, yes it is.