Question

(y-8)/(y-9)=(1)/(y-9) y=?

Answer 1

9

Just multiply both sides by (y-9) to cancel the denominators
y-8=1
y=1+8
y=9

Answer 2

http://openstudy.com/groups/mathematics/updates/4e8931e40b8b543d41e5cf3d#/groups/mathematics/updates/4e893f2b0b8b543d41e63e1a

Answer 3

answer is not 9 since y can't equal 9 (to avoid division by zero)