Question

已知2X+1的绝对值+3Y-1的绝对值=0,求X+Y分之X-Y的值，急急急！！！

Answer 1

因l2x+1l+l3y-1l=0
则l2x+1l=0；l3y-1l=0
则x=-1/2；y=1/3
则(x-y)/(x+y)=5

Answer 2

2X+1的绝对值+3Y-1的绝对值=0

2x+1=0
x=-1/2

3y-1=0
y=1/3

(x-y)/(x+y)=(-1/2-1/3)/(-1/2+1/3)=-5/6÷-1/6＝5