∵(3x-2y)/(x+y)=2/3
∴3(3x-2y)=2(x+y)
9x-6y=2x+2y
9x-2x=2y+6y
7x=8y
x/y=8/7
∴3x/5y
=(3/5)×(x/y)
=(3/5)×(8/7)
=24/35
请点击下面的【选为满意回答】按钮.