Length of video: 4 mins.

Direct link to video: http://www.youtube.com/watch?v=UHgEW5WiGh8

Leave your answer for bonus question in the comments section!

Length of video: 4 mins.

Direct link to video: http://www.youtube.com/watch?v=UHgEW5WiGh8

Leave your answer for bonus question in the comments section!

Hi, I'm Ai Ling Ong. I enjoy coaching students who have challenges with understanding and scoring in 'O' Level A-Maths and E-Maths. I develop Math strategies, sometimes ridiculous ideas to help students in understanding abstract concepts the fast and memorable way. I write this blog to share with you the stuff I teach in my class, the common mistakes my students made, the 'way' to think, analyze... If you have found this blog post useful, please share it with your friends. I will really appreciate it! :)

Nae says

x=-9

Muhammad Ovais says

=-9 Ans

Ai Ling says

:) Thank you for participation.

Answer is correct!

Fizo says

X = -9

meera says

Hi Ai Ling,

Gong Xi Fa Chai....Happy Chinese New Year..

Thank u very much for the tips.

Ans : x = -9

Ai Ling says

Thank you for participation!

hussein says

interesting and very easy question but what about some more complicated ones?

Genevieve says

Answer: -9

Thanks so much!

clare says

the answer: -9

i love maths!

meme says

the first tym u helped me was with bearing when i was going to have my exams and this is the second tym ur helping me with indices in another exam thanx a lot i wish u will do the complete syllabus of o level thanx a lot:)

Margaret says

how do you work the bonus question on linear inequalities,single inequality sign,part 1

Dany says

you just converted 40 minutes of class work into 4