(數學題)很易

2007-12-30 11:27 pm
A+B+C=X
B+B+C=Y
C+B+C=A
X+Y+A=?
看你們的應變能力

回答 (6)

2007-12-30 11:40 pm
✔ 最佳答案
A=2C+B

(2C+2B+C)+(2B+C)+(2C+B)
=6C+5B
2007-12-31 11:18 pm
X+Y+A=?
?=X+Y+A,,
參考: 冇答案要求
2007-12-31 11:10 pm
X+Y+A=A+B+C+B+B+C+C+B+C=A+4B+4C
參考: me
2007-12-31 1:54 am
X+Y+A=?
?=A+4B+4C

2007-12-30 17:55:52 補充:
A+B+C=XB+B+C=YC+B+C=AX+Y+A=?X+Y+A=A+B+C+B+B+C+C+B+CX+Y+A=A+4B+4C X+Y+A=C+B+C+4B+4CX+Y+A=B+4B+2C+4CX+Y+A=5B+6C
2007-12-31 12:28 am
X+Y+A
=A+B+C+B+B+C+C+B+C
=A+4B+4C
=A+4(B+C)
參考: me
2007-12-31 12:03 am
X+Y+A = A+B+C+B+B+C+C+B+C

= C+B+C+B+C+B++B+C+C+B+C
= 6C+5B


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