Simplify the following:

EbenezerSon · 2014-09-07 05:53:50

Yes

bobbym · 2014-09-07 05:58:37

Now raise e to both sides power.

The LHS becomes simply:

follow to here?

EbenezerSon · 2014-09-07 06:01:19

What is the meaning of e?

bobbym · 2014-09-07 06:10:23

e is a fundamental constant like π.

See you in a bit, have to do a chore.

EbenezerSon · 2014-09-07 06:43:00

I see! You can proceed now.

bobbym · 2014-09-07 08:43:02

By the law of multiplication of powers.

Good so far?

EbenezerSon · 2014-09-07 22:07:31

I get it.

EbenezerSon · 2014-09-07 22:11:41

By the way, why did you drop the e on the LHS?

bobbym · 2014-09-07 22:15:20

Now

because e^x is the inverse operation to log(x), that means in the simplest sense that e^x undoes whatever log(x) does to x. So whatever log(2) is doing to 2, e^log(2) will undo. This is overly simplified but good enough for now.

We now get:

follow?

EbenezerSon · 2014-09-07 22:21:52

Ok, go on

bobbym · 2014-09-07 22:29:13

Clean it up a bit:

Add 1 to both sides:

Divide both sides by 3 to get x all by itself.

EbenezerSon · 2014-09-07 22:37:28

Why didn't you drop the 3 on the e?

bobbym · 2014-09-07 22:41:40

That is an e^3 it means e x e x e. Where should we drop it?

EbenezerSon · 2014-09-07 22:57:40

Is that the final answer?

bobbym · 2014-09-07 22:59:17

Yes, that is the final answer. To give you a better idea about e. It is approximately 2.718281828459045

EbenezerSon · 2014-09-08 00:03:10

I was asking why you took off the e which carried 3x-1?

EbenezerSon · 2014-09-08 00:05:35

I was asking why you took off the e which carried 3x-1?

bobbym · 2014-09-08 00:11:18

Over here?

EbenezerSon · 2014-09-08 00:21:09

Yes

bobbym · 2014-09-08 00:25:02

Whatever log is doing to 3x-1 in log(3x-1), e^ is undoing so

EbenezerSon · 2014-09-08 00:32:36

Ok, I see now thanks!
I have another which I will post.

Thanks

bobbym · 2014-09-08 00:36:39

Okay, I am taking a break see you later.

EbenezerSon · 2014-09-08 00:39:58

I had -x + 7 but the book has x-7 as answer, can you explain why it has that answer?
This is the equation;
3 - (x - 4)

I will be back in a jiffy

EbenezerSon · 2014-09-09 23:09:28

Ok, this is what I did;
3 - (x - 4 )
= 3-x + 4
= -x + 7 is this answer fine? Please confirm

bobbym · 2014-09-10 01:47:58

That answer is correct.

Math Is Fun Forum

#476 2014-09-07 05:53:50

Re: Simplify the following:

#477 2014-09-07 05:58:37

Re: Simplify the following:

#478 2014-09-07 06:01:19

Re: Simplify the following:

#479 2014-09-07 06:10:23

Re: Simplify the following:

#480 2014-09-07 06:43:00

Re: Simplify the following:

#481 2014-09-07 08:43:02

Re: Simplify the following:

#482 2014-09-07 22:07:31

Re: Simplify the following:

#483 2014-09-07 22:11:41

Re: Simplify the following:

#484 2014-09-07 22:15:20

Re: Simplify the following:

#485 2014-09-07 22:21:52

Re: Simplify the following:

#486 2014-09-07 22:29:13

Re: Simplify the following:

#487 2014-09-07 22:37:28

Re: Simplify the following:

#488 2014-09-07 22:41:40

Re: Simplify the following:

#489 2014-09-07 22:57:40

Re: Simplify the following:

#490 2014-09-07 22:59:17

Re: Simplify the following:

#491 2014-09-08 00:03:10

Re: Simplify the following:

#492 2014-09-08 00:05:35

Re: Simplify the following:

#493 2014-09-08 00:11:18

Re: Simplify the following:

#494 2014-09-08 00:21:09

Re: Simplify the following:

#495 2014-09-08 00:25:02

Re: Simplify the following:

#496 2014-09-08 00:32:36

Re: Simplify the following:

#497 2014-09-08 00:36:39

Re: Simplify the following:

#498 2014-09-08 00:39:58

Re: Simplify the following:

#499 2014-09-09 23:09:28

Re: Simplify the following:

#500 2014-09-10 01:47:58

Re: Simplify the following:

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