Let n = the unknown number
nine is three times the difference between a number and two
the difference between the number and 2 is (n-2). Three times the difference is 3(n-2). Hence our equation is:
3(n-2) = 9
3n - 6 = 9
Solve for n
Melanie G.
asked 05/04/14
Get a free answer to a quick problem.
Most questions answered within 4 hours.
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.