a\b\c\三个数的和是14.8,a.b的和是8.2,a.c的和是7.5,求a.b.c个是多少

问题描述:

a\b\c\三个数的和是14.8,a.b的和是8.2,a.c的和是7.5,求a.b.c个是多少

14.8-8.2=c=6.6 14.8-7.5=b=7.3 14.8-6.6-7.3=a=1