Problem: Given R.Hatton equals 10 rounds KTFO by Mayweather, determine number of rounds before M.Hatton KTFO. Simplify ur answer. Solution: let x = no. of rounds Equations: R.Hatton + Mayweather = 10 ----Eqn1 M.Hatton + Mayweather = x ----Eqn2 assume R.Hatton is 10 times better than M.Hatton, therefore: R.Hatton = 10(M.Hatton) M.Hatton = R.Hatton/10 ----Eqn3 substitute Eqn3 to Eqn2: R.Hatton/10 + Mayweather = x ----Eqn4 From Eqn2: R.Hatton = 10 - Mayweather substitute to Eqn4: (10 - Mayweather)/10 + Mayweather = x 1 - 0.10(Mayweather) + Mayweather = x 1 + 0.90(Mayweather) = x Since Mayweather has no balls, thus Mayweather = 0 substitute: 1 + 0.90(0) = x x = 1 round