Thanks Alan.

Hey, 15x3 if you are feeling really generous you could give CPhill and me some thumbs up.  

If you don't like me calling you 15x3 you'd better say so because otherwise you are stuck with it. 

okay Dragon, you've made up your own question but you answered it corectly - I'll let you have it - thumbs up from me.

Because you are xvxvxv

xv is 15 in roman numerals and there are 3 of them so you are 15x3  

Because it is equal to an absolute value so it can't be negative!

Do you see what I mean?

Antilog is not a term I have used since I was at school and we wer not allowed to use calculators.

BUT

I think it just means 10^0.35

$${{\mathtt{10}}}^{{\mathtt{0.35}}} = {\mathtt{2.238\: \!721\: \!138\: \!568\: \!339\: \!6}}$$

Please someone correct me if I am wrong.

Hi 15x3 

I didn't even notice that question!

$$|2x-9|&=&3-x\\\\
\begin{array}{rlllrl}
2x-9&=&3-x\qquad &or \qquad 2x-9&=&-(3-x)\\
3x&=&12\qquad &or \qquad 2x-9&=&-3+x\\
x&=&4\qquad &or \qquad x&=&6\\
\end{array}
\\BUT\\
3-x\ge 0\\
-x\ge -3\\
x\le 3\\$$

Therefore there are no solutions.

-----------------------------------------------------------

Heureka please help.

I am just not getting the hang of this aligning properly, I wanted the x up against the equal sign, and its not there!

This is my code.

\begin{array}{rlllrl} 2x-9&=&3-x\qquad &or \qquad 2x-9&=&-(3-x)\\

3x&=&12\qquad &or \qquad 2x-9&=&-3+x\\

x&=&4\qquad &or \qquad x&=&6\\

\end{array} \\

Can you try and explain please?

Aziz, you could probably present a question like this in LaTex next time. 

Only if you are up to it.  

Thankyou anonymous for providing the puzzle and thanks AzizHusein for providing the clever solution. 1/8/14

Does

y Σ x X ^

mean anything to anyone?

I'm impressed too.  I'm going to put this one into our 'puzzles' sticky thread!

Thanks to both of you.