[計量] 一題數學
那呈我剛剛問的觀念~
If Sam were twice as old as he is, he would be
40 years older than Jim. If Jim is 10 years younger
than Sam, how old is Sam?
我的算法是
2sam = he
he = J +40
J = S-10
解聯立~
可是這跟之前版友的回答就抵觸了
依版友的回答應該是sam = 2he 吧
我時在不知道我的盲點在哪= =
麻煩各位板友了~謝謝~
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