Х-16000=190000
х=190000-16000
х=174000
########
250000-¥=80000
¥=250000-80000
¥=170000
####$$#$$$$
81000+z=350000
z=350000-81000
z=269000
$$$$$$$$$$$
m+30=100000
m=100000-30
m=99970
##############
t-17-120=100000
t-137=100000
t=100000+137
t=100137
#####$#####'
n+50=100000
n=100000-50
n=99950