405+х=1000-158
x = – 158 + 1000 – 405
x = 437
проверка
405+437=1000-158
842=842
у-457=56+104
y = 104 + 56 + 457
y = 617
617-457=56+104
160=160
х-209=400-264
x = – 264 + 400 + 209
x = 345
345-209=400-264
136=136
239+у=800-197
y = – 197 + 800 – 239
y = 364
239+364=800-197
603=603
405+х=1000-158 x = – 158 + 1000 – 405 x = 437 проверка 405+437=1000-158 842=842 у-457=56+104 y = 104 + 56 + 457 y = 617 проверка 617-457=56+104 160=160 х-209=400-264 x = – 264 + 400 + 209 x = 345 проверка 345-209=400-264 136=136 239+у=800-197 y = – 197 + 800 – 239 y = 364 проверка 239+364=800-197 603=603
405+х=1000-158
x = – 158 + 1000 – 405
x = 437
проверка
405+437=1000-158
842=842
у-457=56+104
y = 104 + 56 + 457
y = 617
проверка
617-457=56+104
160=160
х-209=400-264
x = – 264 + 400 + 209
x = 345
проверка
345-209=400-264
136=136
239+у=800-197
y = – 197 + 800 – 239
y = 364
проверка
239+364=800-197
603=603
405+х=1000-158 x = – 158 + 1000 – 405 x = 437 проверка 405+437=1000-158 842=842 у-457=56+104 y = 104 + 56 + 457 y = 617 проверка 617-457=56+104 160=160 х-209=400-264 x = – 264 + 400 + 209 x = 345 проверка 345-209=400-264 136=136 239+у=800-197 y = – 197 + 800 – 239 y = 364 проверка 239+364=800-197 603=603