鸡兔同笼,有15个头,鸡脚比兔脚少18只,鸡和兔各有几只?我要算式,不要方程,还要每一步的含义.

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 14:39:58
xWQOA+ǛDzC.TӾطS1@Ă VEmj# Ull)g}xw>_跻%zXbL73Lvf!5R-*ii#?:m r2O W/sq+ YƂ~8Kl-Zϱ~ïIw\Je_V3SNw4NcPܺ_kT✘Taֵt2tZz\3U=U,q# P~,(t ʌp薸wI2a]@kgPatA ?s)ӭM\;X8Ăư}Q('Gd&͋&]o)n 28ytC0ac|0#d{pƔeJieꛙznn>::== r,OG%s0s{>*=1' eI݈azȜ0H5RTdxUڏ}> N UftDDʗO"qZlGIfCwmnki~7Li[ۊ(00)ThޛteU<(Mp.7DZm#r)V)Eb@|AΉBz=Z~V&*A%1x<ekBl!O/ cfaʛuvÞvn`eؐSd`?[(w{1]{U;ב