SOLUTION: The members of a flying club plan to share equally the cost of $200000 airplane. The members want to find five more people to join the club so that the cost per person will decrea

You can put this solution on YOUR website!
(200,000/x)=200,000/(x+5)+2,000
(200,000/x)=(200,000+2,000[x+5])/(x+5)
(200,000/x)=(200,000+2,000x+10,000)/(x+5)
(200,000/x)=(210,000+2,000x)/(x+5)
now cross multiply
200,000(x+5)=(210,000+2,000x)x
200,000x+1,000,000=210,000x+2,000x^2
2,000x^2+210,000x-200,000x-1,000,000=0
2,000x62+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 the number of original club members.
proof
200,000/20=(200,000/25)+2000
10,000=8,000+2,000
10,000=10,000