3分之x=4分之y=5分之z求2x+y-z分之x+2y+3z的值

2025-06-26 06:36:21
推荐回答(2个)
回答1:

令x/3=y/4=z/5=t

则x=3t,y=4t,z=5t
(x+2y+3z)/(2x+y-z)=(26t)/(5t)=26/5

回答2:

化解为29X/3