Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:
" a0 s$ s" \8 B* e冇答案ga....
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2條equation solve 唔到3個unknown ga....

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agree
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2 equations 2 unknows$ k7 i2 }! P; z2 W, `/ G/ U7 d
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if 3 unknows there should be 3 equations
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make it simple - w6 ^1 h- i( }; z7 i6 l0 z

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a + b +c = 3
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& Z! Y% A8 D0 a' }a+b = 2) @3 W9 p7 {- B; ]* `4 @

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a = 2 - b
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so 0 = 0
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