2 X - 2 X /3 -170 = X +5
2 X - 2 X / 3 - X = 170 + 5
ADUCEM LA ACELASI NUMITOR
(6 X - 2 X - 3 X ) / 3 = 175
X / 3 = 175
X = 175 x 3, X = 525
R: Marius are 525 timbre