已知A/B/C=6;A/B-C=15;A-B=17。则A+B+C=( );AxBxC=( )
已知A/B/C=6;A/B-C=15;A-B=17。则A+B+C=( );AxBxC=( )
日期:2022-03-30 00:13:50 人气:1
已知 A/B/C = 6 ,可得:A/B = 6C ;
代入 A/B-C = 15 ,可得:6C-C = 15 ,解得:C = 3 ;
则有:A/B = 6C = 18 ,可得:A = 18B ;
代入 A = B+17 ,可得:18B = B+17 ,解得:B = 1 ;
则有:A = 18B = 18 ;
所以,A+B+C =
代入 A/B-C = 15 ,可得:6C-C = 15 ,解得:C = 3 ;
则有:A/B = 6C = 18 ,可得:A = 18B ;
代入 A = B+17 ,可得:18B = B+17 ,解得:B = 1 ;
则有:A = 18B = 18 ;
所以,A+B+C =