five years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old as I will be. how old am I now?

me (now) : x5 years ago, me: x - 55 years ago, my grandfather: 5.(x - 5)Now, my grandfather: 5.(x - 5) + 5 = 5x - 25 + 5 = 5x - 20 (I)Three years from now, me: x + 3Three years from now, my grandfather: 3.(x + 3) = 3x + 9Now, my grandfather: 3x + 9 - 3 = 3x + 6 (II)___________________________________________Now:3x + 6 = 5x - 2026 = 2x13 = xSo, I am 13 years old.  :)