欢欢花了7元钱买了面额为6角和8角的邮票,两种邮票的数量相同,欢欢买的两种邮票各有多少枚?)K)]-[0S,h7w
解:
算式:提示3z+k.M6z*f'B)K)]-[0S,h7w
答:欢欢两种邮票各买了5k8U6N*l+s;o'N6f:C(E枚。)K)]-[0S,h7w