583, 374, 278, 142, 64, 651
1) 6м+м-35=21
7м=21+35
7м=56
м=56/7=8
2) 17п+14п-145=134
31п=134+145
31п=279
п=279/31=9
3) 5п+9п+32=200
14п=200-32
14п=168
п=168/14=12
(х-216)-408=159
(х-216)=408+159
(х-216)=567
х=567+216
х=783
Проверка
(783-216)-408=159
159=159
39:5=7 (ост.4)
56:9=6 (ост.2)
16:3=5 (ост.1)
45:6=7 (ост.3)
50:9=5 (ост.5)