x+2/y=50,3/2x+y=50
问题描述:
x+2/y=50,3/2x+y=50
答
x+y/2=50…………(1)
2x/3+y=50 ……(2)
(1)*2-(2)
==>4x/3=50
==>x=75/2
代入(1)
==>75/2+y/2=50
==>y=25
==>x=75/2=37.5,y=25