Hey guys, need some help in how to answer some math questions. If it's possible can someone explain these step by step?

1. Simplify each expression and state the restrictions on the variable.
(1/(x+7) - (1/7)) / x

I do not know how to do this, I know to get a common denominator on the top (7(x+7)) then multiply it into everything, but I am confused how that works...?

2. Solve each inequality and graph the solution on a number line.
4x - 1 > 3x + 5

...I don't even know what this question is asking. All I know is to treat the sign as an equal sign. Am I solving for x... or what?

3. Solve.

2 *square root* x-3 */square root* + 3 = 7

3 letters sums up my understanding of this question... WTF???

and finally...

4. Find the inverse of the following function: y = (3x+4) / (7x - 2)

I know to switch the x and y then solve for the y, but I do not know how to do it.

Any help with these questions is GREATLY appreciated.

EDIT: people who are saying that I am getting people to do my homework for me are somewhat right, but for the wrong reasons. Homework is how you learn how to do math, so you can apply it to tests and quizzes. I need to learn how to do these things, and it's best to learn from examples, these are examples, I need help.
Last edited by pepsi_lovr at Sep 14, 2008,
Unlike a lot of people.
I hope it doesn't seem, like I'm young, foolish, and green.
Let me in for a minute, you're not my life but I want you in it

O Dayya, te echaré de menos, siempre

Y siempre
Y para siempre
Hai Pit!

I'm too lazy to do my own h/w, lolerz. Could you do it for me, in exchange for nothing?

That's what people who start these threads twice a day sound like.
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I think you've won this thread.

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darthteet just scored big on the win scale.
so your just dumb and didnt pay attention in class so decided to ask a bunch of people on the internet for help with your homework.

Im not helping, maybe if it was 1 problem and it was somewhat difficult.
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I tried BAGDAD tuning once, it actually was quite alright.

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Do you have to actively try to spell words that wrong or does it come naturally to you?

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You are very clever.

I invented this literary device I call sarcasm, that was an example of it.
I hope it doesn't seem, like I'm young, foolish, and green.
Let me in for a minute, you're not my life but I want you in it

O Dayya, te echaré de menos, siempre

Y siempre
Y para siempre
I'll do #3 so this thread isn't useless.

2*sqrt(x-3)+3=7
2*sqrt(x-3)=4
sqrt(x-3)=2
x-3=4
x=7

Pretty simple yeah
Thank you pak1351, for being the only one that didn't spam. Anyone know the answers to the other 3 questions? AKA, how to do them?
Quote by pepsi_lovr
Anyone know the answers to the other 3 questions? AKA, how to do them?

Yes.

Oh, you want us to tell you them as well?

Maybe if you went to the appropriate thread, we would be more useful.
Quote by HunterRiggs10

Quote by mrwaffles
I think you've won this thread.

Quote by freedoms_stain
darthteet just scored big on the win scale.
Gah! Math! My worst enemy!
If you're gonna be dumb, you gotta be tough
Do ya own 'kin homework, retard! You cant take us Pit into your exams you know!
Quote by pepsi_lovr
Thank you pak1351, for being the only one that didn't spam. Anyone know the answers to the other 3 questions? AKA, how to do them?

I don't know which part of that post is more ironic than the others.
I hope it doesn't seem, like I'm young, foolish, and green.
Let me in for a minute, you're not my life but I want you in it

O Dayya, te echaré de menos, siempre

Y siempre
Y para siempre