ลดความซับซ้อนของนิพจน์ต่อไปนี้: 2 + 2 {(14 + 6) 5-: + (3 8) -: [12 - (3 + 2 3)] - 15 - :( 2 + 2-: 6)} - 2 9 =?

#2+2*{(20)*5: +24:12-9-15: (2+1/3)}#

#2+2*{100: 24: 3-15: 7/3}#

#2+2*{100:24:(-12): 7/3}#

#2+2*{100:24: (-12) * 3/7}#

#2+2*{100:24:(-36/7)}#

#2+2*{100:24*(-7/36)}#

#2+2*{100:(-168/36)}#

#2+2*{100*(-36/168)}#

#2+2*{25*(-36/42)}#

#2+2*{-900/36}#

#2+2*(-300/12)#

#2+2*(-100/4)#

#2+2*(-25)#

#2-50#

#-48#