Решение:
395 + x = 864x = 864 - 395x = 469
s + 213 = 584s = 584 - 213s = 371
300 - y = 206y = 300 - 206y = 94
Ответ:x = 469s = 371y = 94
Решение:
395 + x = 864
x = 864 - 395
x = 469
s + 213 = 584
s = 584 - 213
s = 371
300 - y = 206
y = 300 - 206
y = 94
Ответ:
x = 469
s = 371
y = 94