7x-3y/5=5x-y/3-x+y/2 ｛ x-1/5=y+1/3具体题目是这样.谢谢
问题描述：
7x-3y/5=5x-y/3-x+y/2
｛
x-1/5=y+1/3
具体题目是这样.谢谢
答
7x-3y/5=5x-y/3-x+y/2 →7x-5x+x=3y/5-y/3+y/2→3x=(18y-10y+15y)/30→3x=23y/30→90x-23y=0①
x-1/5=y+1/3 →x-y-8/15=0②
①-90*②,得
67y+48=0
y=-48/67
所以x=-48/67+8/15=-184/1005
答
Y＝－26/43
X＝－46/645