假设
x分之3=y分之4=z分之5=1,则x=3,y=4,z=5
3x-2y+z分之x+y+z
=(3x3-2x4+5)分之(3+4+5)
=6分之12
=2
http://zhidao.baidu.com/link?url=YFSMczTGMWyIovP1YsFOey1MV92UTtVgF5w8C7ai-kUDjnzn8g_9oKL6iFrGfOD3S1RQ-PNWv6q6XdxrbZ6ZnDt3ovcus7D8w6QhvNpCotW
假设
x分之3=y分之4=z分之5=1,则x=3,y=4,z=5
3x-2y+z分之x+y+z
=(3x3-2x4+5)分之(3+4+5)
=6分之12
=2
http://zhidao.baidu.com/link?url=YFSMczTGMWyIovP1YsFOey1MV92UTtVgF5w8C7ai-kUDjnzn8g_9oKL6iFrGfOD3S1RQ-PNWv6q6XdxrbZ6ZnDt3ovcus7D8w6QhvNpCotW