[(6756+3a-5):4+41]x24-1768=39848
[(6756+3a-5):4+41]x24=39848+1768
[(6756+3a-5):4+41]x24=41616
(6756+3a-5):4+41=41616:24
(6756+3a-5):4+41=1734
(6756+3a-5):4=1734-41
(6756+3a-5):4=1693
6756+3a-5=1693x4
6756+3a-5=6772
6756+3a=6772-5
6756+3a=6767
3a=6767-6756
3a=11
a=11:3
a=3,(6)
