1.the larger of two numbers ** 1 more than twice the smaller. the sum of the numbers ** 20 less that three times the larger. find the numbers.1.两个数字种较大的那个是较小那个的两倍还多1。这两个数之和比较大数的3倍少20。求这两个数。设较大数为x,较小数为...
the introduction of life insurance business to solve human problems of life's greatest invention, its practical significance and far-reaching significance of the social and especially family.howev...
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