已知x/3等于y/4等于z/5,则8x➕y➕6z分之x+4y+2z等于
问题描述:
已知x/3等于y/4等于z/5,则8x➕y➕6z分之x+4y+2z等于
答
设x/3=y/4=z/5=k则x=3ky=4kz=5k带入就可以了
已知x/3等于y/4等于z/5,则8x➕y➕6z分之x+4y+2z等于
设x/3=y/4=z/5=k则x=3ky=4kz=5k带入就可以了