有6个自然数,每相邻两个数的差是6,如果第一个数是a,那没这六个数的和怎么表示?
有6个自然数,每相邻两个数的差是6,如果第一个数是a,那没这六个数的和怎么表示?
数学人气：824 ℃时间：2019-09-21 06:28:41
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a＋（a＋6）＋（a＋12）＋（a＋18）＋（a＋24）＋（a＋30）＝6a＋90
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