如果个3数中每2个数之和为36,51,29,求这3个数._数学解答

如果个3数中每2个数之和为36,51,29,求这3个数.

人气：486 ℃　时间：2020-05-12 00:56:52

解答

设三个数为 a、b、c 则有
a + b = 36
b + c = 51
c + a = 29
a + b + c = (36 + 51 + 29)/2 = 116/2 = 58
a = 58 - 51 = 7
b = 58 - 29 = 29
c = 58 - 36 = 22