Question 130520
let x="original number" __ 600/x=(600/(x+2))+10


multiplying by x(x+2) __ 600x+1200=600x+10x^2+20x


subtracting 600x+1200 and dividing by 10 __ 0=x^2+2x-120


factoring __ 0=(x+12)(x-10) __ 0=x+12 and 0=x-10