even divide 4, the ans still x(1-4x)

divide 1 number only

even divide 4, the ans still x(1-4x)

divide 1 number only

Sept.

Friday nite fever?

I really have fever leh

lol yea =X

hihi alex we're best fren now loooool!

what about this?

5x-4y=9
X-2y=-3

5x = 9+ 4y
x = 9/5 + 4/5y

X-2y=-3
x = -3+2y

9/5 + 4/5y = -3 + 2y
4/5y-2y = -3 + 9/5 <--- wrong, should be 4/5y-2y = -3 - 9/5
4y-10y / 5 = -15 + 9 / 5

-6y /5 = -6/5
y = 1

X-2(1)=-3
x = -3 + 2
x = -1

the solution is ,
(-1,1)

@wwlai87 pro

  teach me account............

nite panda ^^
take k

erm i dunno oo >"<

anyway i gtg sleep edy.. 12am edy >"<

wow~
y like tat ? ?

Nvm u are not alone, still got things invisible that will always accompany u

U shuld u know?
Especially at night when you are alone in the office, where everthing quiets down

You may hear of their existence, sometimes its good if they can come out and talk to u
At least u arent bored

Dont go ma next time

Some times i alone late at nite aso
Got once till 1 am, song sei i alone in the company

then where is their mother come from? ?

Yeah
Good if u go company at nite
The serenity and the queitness

OoO manager detected!

U can move ppl means u is have power
I cuci tandas oni

Wah high class ppl detected
QC !