560 + 906 * 2 = 2372
560 + 906 * 3 = 3278
560 + 906 * 5 = 5090
560 + 906 * 10 = 9620
560 + 906 * 45 = 41330
2.4b-46.3+1.7-8b=-5.6b-44.6
- (-2х + 7) - 3(х - 1)= 2x-7-3x+3=-x-4
Число решений в этом уравнении - 4.
Ответ: 83/198
Объяснение:
7/18 = (1/18) + (6/18) = (1/18) + (1/3);
(7/18) + (1/33) = (1/18) + (1/3) + (1/33) = (1/18) + (11/33) + (1/33) = (1/18) + (12/33) = (1/18) + (4/11) = (11+4*18) / 198 = 83/198