How can I do these?

Make x the subject:

1.

2.

3.

4.

Thanks in advance!

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- Nov 27th 2009, 01:03 AMJadeKiaraMaking X The Subject
How can I do these?

Make x the subject:

1.

2.

3.

4.

Thanks in advance! - Nov 27th 2009, 01:10 AMmathaddict
- Nov 27th 2009, 01:14 AMJadeKiara
Do you realise that the equation was ?

I'm sorry, I am new to LaTex, and it was supposed to be:

1. y=2x-5/3

2. y=/sqrt{4+2x}

3. y=1/{x^3+8}

4. y={k+ax}/{k-ax} - Nov 27th 2009, 01:44 AMGrandad
Hello JadeKiaramathaddict's answer to #1 was based on the equation , and was correct.

However, #3 was (correctly) based on your first post. But, following your alteration, it should be:

(Do you understand that step?)

And #4 is a bit trickier:

(Do you see how I've factorised each side?)