Question 174609
200,000/x-200,000/(x+5)=2,000
(200,000[x+5]-200,000x)/x(x+5)=2,000
(200,000X+1,000,000-200,000X)/X^2+5X=2,000
1,000,000/(X^2+5X)=2,000
2,000X^2+10,000X=1,000,000
2,000X^2+10,000X-1,000,000=0
2,000(X^2+5X-500)=0
2,000(X+25)(X-20)=0
X-20=0
X=20 IS THE NUMBBER OF ORIGINAL MEMBERS.
pROOF:
200,000/20-200,000/25=2,000
10,000-8,000=2,000
2,000=2,000