48:z=887-879
48:z=8
z=48:8
z=6
проверка:
48:6=887-879
974-b:7=969
b:7=974-969
b:7=5
b=7*5
b=35
974-35:7=969
48:z+879=887
48:6+879=887
8+879=887
887=887
974-5=969
969=969
48:z=887-879
48:z=8
z=48:8
z=6
проверка:
48:6=887-879
974-b:7=969
b:7=974-969
b:7=5
b=7*5
b=35
проверка:
974-35:7=969
48:z+879=887
48:z=887-879
48:z=8
z=48:8
z=6
48:6+879=887
8+879=887
887=887
974-b:7=969
b:7=974-969
b:7=5
b=7*5
b=35
974-35:7=969
974-5=969
969=969