数学英语都好的进来!1.the sum of 200 and 7 times a number2.ten less th

6 times the sum of a bumber and 5 eight times the sum of a number and its reciprocal results i 英语翻译1the product of the sum of the factors and the sum of th A is 1 less than two times of B,and B is 10 less four times 解一道有英语的奥数题：The sum of n different positive integers is less 英语数学题要有解题方法！1.The sum of n different natural numbers is less six less than three times the square of y 的数学表达方式 the product of 7 and a number is more than the sum of 7 and "The sum of its top side and the bottom side is 2.6 times as 7、The sum of n different positive integers is less than 50.T which are 7 times as much as the sum of its two didits.是神马意思 英语翻译Consider the set of integers greater that -2 and less th