(450+57)x19-110=507x19-110=9633-110=9523
9450-[(81+42)-(7+49)]x8-4325=9450-(123-56)x8-4325=9450-67x8-4325=9450-536-4325=8914-4325=4589
81-7+10-8:2=74+10-4=80
(14+56):(31--6)=70:37??
9270-[5698-(9+9)]:8+30:6=9270-(5698-18):8+5=9270-5680:8+5=9270-710+5=8560+5=8565