a) b + 1111 = 3000
b = 3000 - 1111
b = 1889
1889 + 1111 = 3000
б) 456 + с = 1362
с = 1362 - 456
с = 906
456 + 906 = 1362
в) p + 207 = 1451
p = 1451 - 207
p = 1244
1244 + 207 = 1451
г) 1834 - y = 753
y = 1834 - 753
y = 1081
1834 - 1081 = 753
д) b - 345 = 96
b = 96 + 345
b = 441
441 - 345 = 96
е) 2045 - x = 115
x = 2045 - 115
x = 1930
2045 - 1930 = 115
ж) k - 183 = 2095
k = 2095 + 183
k = 2278
2278 - 183 = 2095
з) 708 + c = 1834
c = 1834 - 708
c = 1126
708 + 1126 = 1834
и) а - 109 = 897
a = 897 + 109
a = 1006
1006 - 109 = 897
