lee條點計

4h+12-2+h = 8h-2
4h+10+h = 8h-2
10+2 = 8h - 4h - h
12 = 3h
h = 12/3
h = 4

2006-11-17 23:01:17 補充：
將同類項放在一邊，非同類項放在另一邊。h和4h、8h是同類項，與12是非同類項。故應將h和4h、8h放在一邊。將8h、4h、h放在右方是因為不用處理負號，不用太麻煩。

Easy thing
4h+12-2+h=8h-2
4h+h-8h=-2-12+2
-3h=-12
h=4

4h+12-2+h=8h-2
5h+10=8h-2
5h+10+2=8h-2+2
5h+12=8h
5h+12-5h=8h-5h
12=3h
12/3=3h/3
4=h
h=4

4h + 12 - 2 + h = 8h - 2
5h +10 = 8h -2
12 = 3h
h =4

4h+12-2+h=8h-2
= 5h+12-2=8h-2
= 5h+10=8h-2
= 5h-5h+10=8h-5h-2
= 10=8h-5h-2
= 10=3h-2
= 10+2=3h-2+2
= 12=3h

h=4

4h+12-2+h=8h-2
4h+h+12-2=8h-2
5h+10=8h-2
5h-5h+10=8h-5h-2
10=3h-2
10+2=3h-2+2
12=3h
12/3=3h/3
4=h (Ans)

4h + 12 - 2 + h = 8h -2
4h + h - 8h = - 2 - 12 + 2 將h放係左邊，然後將constant (ie. 2,12) 放係右邊
- 3h = - 12
h = - 12 / - 3 將*3搬去右邊，變/3
h = 4.



我唔知你係唔係想咁做, anyway hope it helps.

4h+12-2+h=8h-2

5h+10=8h-2

3h=12

h=4