Решить уравнение 100 001-(х+44 864)=31 587

100.001 - (х + 44.864) = 31.587
100.001 - х - 44.864 = 31.587
55.137 - х = 31.587
55.137 - 31.587 = х
23.550 = х
х = 23.550
проверка:
100.001 - (23.550 + 44.864) = 31.587
100.001 - 68.414 = 31.587
31.587 = 31.587