雞兔同籠,數(shù)頭共a只,數(shù)腳共b只,則雞兔各有幾只?
雞兔同籠,數(shù)頭共a只,數(shù)腳共b只,則雞兔各有幾只?
數(shù)學(xué)人氣：282 ℃時(shí)間：2020-05-08 16:02:44
優(yōu)質(zhì)解答
設(shè)雞有X只 則兔就有a-x只 則 2X+4(a-x)=b 代入a,b具體數(shù)值就能求出x了謝謝了！
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