已知3a=5b+2c,2分之3a+2分之1b=4c 又c≠0(1)求a:b:c(2)求(3a-2b+5c)分之(2a+3b-4c)
问题描述:
已知3a=5b+2c,2分之3a+2分之1b=4c 又c≠0
(1)求a:b:c
(2)求(3a-2b+5c)分之(2a+3b-4c)
答
已知3a=5b+2c,2分之3a+2分之1b=4c 又c≠0
(1)求a:b:c
(2)求(3a-2b+5c)分之(2a+3b-4c)