a+b=91c+b=63c+a=46问abc各等于多少

日期：2013-07-15 17:27:56 人气：2

a + b + c = (91 + 63+ 46) / 2 = 100a = 100 - (b + c) = 100 - 63 = 37b = 100 - (c + a) = 100 - 46 = 54c = 100 - (a + b) = 100 - 91 = 9