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#26 2013-07-13 04:16:59
- TryingMyBest50
- Member
- Registered: 2013-07-12
- Posts: 13
Re: Linear equations
So i would solve the linear inequality problem the same way i solve the linear equation, but replace the equal sign with < or >
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#27 2013-07-13 04:24:49
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Linear equations
Hi;
There is no reason to replace the equality with either of those that I understand. It is totally arbitrary.
Is there more to the question? Have you left anything out?
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.
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#28 2013-07-13 04:44:27
- TryingMyBest50
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- Registered: 2013-07-12
- Posts: 13
Re: Linear equations
No, i just need to change my 1-variable linear equation to a linear inequality using < or >.
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#29 2013-07-13 04:54:23
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Linear equations
Post #25 does that for all 4 possibilities.
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.
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#30 2013-07-15 02:07:46
- TryingMyBest50
- Member
- Registered: 2013-07-12
- Posts: 13
Re: Linear equations
Good morning bobbym. Would i solve it like this
4x + 11 < 6x - 3
4x - 6x + 11 < - 6x - 6x - 3
2x + 11 -11 < -3 - 11
2x < - 8
-2x/-2 < -8/-2 = x < 4
and check it
4(4) + 11 < 6(4) - 3
16 + 11 < 24 - 3
27 < 27
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#31 2013-07-15 02:17:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Linear equations
Hi;
I am not getting that. Please recheck your work.
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.
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#32 2013-07-15 02:29:39
- TryingMyBest50
- Member
- Registered: 2013-07-12
- Posts: 13
Re: Linear equations
Ok, if you had to change 4x+11=6x-3 into a linear inequality how would you do it, and how would you solve it?
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#33 2013-07-15 02:32:29
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Linear equations
Hi;
In line 2) 4x - 6x = -2x
In your line 3) -3 - 11 = -14
Here is how to do it.
4x + 11 < 6x - 3
Take 4x away from both sides.
11 < 2x - 3
Add 3 to both sides.
14 < 2x
Divide both sides by 2.
7 < x
Or
x > 7
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.
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#34 2013-07-15 02:54:29
- TryingMyBest50
- Member
- Registered: 2013-07-12
- Posts: 13
Re: Linear equations
Ok, i see that i should've have added the 3 - 11. Thank you so much!:) Have a great morning!
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#35 2013-07-15 03:00:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Linear equations
You are welcome, post if you need more.
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.
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