笼中装有鸡和兔若干只，共100只脚，若将鸡换成兔，兔换成鸡，则共92只脚。笼中原有兔、鸡各多少只？7R;n*D9C/H3h3|:s1H4a9E/a+?
算式：提示,B5a(E,Y9`,T8L*`:C7R;n*D9C/H3h3|:s1H4a9E/a+?
答：笼中原有兔-v/`0g0c6~6r,P(f只、鸡3N+[,d8p)P;a7]+`7S0J.M)O0S*j+s3|)\(^7n只。7R;n*D9C/H3h3|:s1H4a9E/a+?