(120+14-18:9):12+(8-4:2):3=
(120+14-2) : 12+ (8-2):3
132 : 12 + 6 : 3
12 + 2 = 14
(120+14-2)/12+(8-2)/3=
(120+12)/12+6/3=
132/12+2=
11+2=13