题目

Mrs Green is expert atcooking and she is willing to teach wants to learn from her. 答案：【1】whoever一个两位数的个位数字是4，如果把个位数字与十位数字对调，那么所得的两位数与原两位数的比值是，如果设原两位数的十位数字是x，那么可以列出方程________．