-3 over n equals 6 over n-1 what is n

Question

What is the value of n 

Answer 1

-3/n=6/(n-1)   Apply cross product multiplication

 -3(n-1) = 6n  Distributive property

-3n  + 3 = 6n   add 3n both sides 

3 =  9n   Division property

3/9 =n or 1/3 = n   simplify

 

or n = 1/3