M · 90 - 705 = 1095 260 + 140 : n = 330 (480 + k) : 3000 = 2
m · 90 = 1095 + 705 140 : n = 330 - 260 480 + k = 2 · 3000
m · 90 = 1800 140 : n = 70 480 + k = 6000
m = 1800 : 90 n = 140 : 70 k = 6000 - 480
m = 20 n = 2 k = 5520
3000 · (80 - t) = 12000
80 - t = 12000 : 3000
80 - t = 4
t = 80 - 4
t = 76