<span>1445 - 2213 - 3600 = -4368
1445 - 3600 - 2213 = -4368
2213 - 1445 - 3600 = -2832
2213 - 3600 - 1445 = -2832
3600 - 1445 - 2213 = -58
3600 - 2213 - 1445 = -58
1445 - 2213 = -768
</span>2213 - 1445 = 768
<span>1445 - 3600 = -2155
</span>3600 - 1445 = 2155
<span>2213 - 3600 = -1387</span><span>
3600 - 2213 = 1387</span>
5+4=9 м/день
9•3=27 м за 3 днi
Ответ: 27
2/7*3=2/21-части поля за 1 день
2*5/21=10/21 - за 5 дней
(12m + 27) + 5 · (31 - 17m) = 448
12m + 27 + 155 - 85m = 448
12m - 85m = 448 - 27 - 155
- 73m = 266
m = 266 : (-73)
m = - 266/73
<h3>m = - 3 целых 47/73</h3>