Question

Решите 4 пожалуйста

Answer 1

1) 8 1/17 - (х + 2 3/17) = 3 9/17 + 15/17;
8 1/17 - х - 2 3/17 = 3 24/17;
7 18/17 - 2 3/17 - х = 4 7/17;
5 15/17 - х = 4 7/17;
х = 5 15/17 - 4 7/17;
х = 1 8/17.
Проверка: 8 1/17 - (1 8/17 + 2 3/17) = 3 9/17 + 15/17; 8 1/17 - 3 11/17 = 3 24/17; 7 18/17 - 3 11/17 = 4 7/17; 4 7/17 = 4 7/17.
2) (у - 5 9/11) + 6 5/11 = 19 - 4 8/11;
у - 5 9/11 + 6 5/11 = 18 11/11 - 4 8/11;
у + 6 5/11 - 5 9/11 = 14 3/11;
у = 14 3/11 - 6 5/11 + 5 9/11;
у = 13 14/11 - 6 5/11 + 5 9/11;
у = 7 9/11 + 5 9/11;
у = 12 18/11;
у = 13 7/11.
Проверка: (13 7/11 - 5 9/11) + 6 5/11 = 19 - 4 8/11; (12 18/11 - 5 9/11) + 6 5/11 = 14 3/11; 7 9/11 + 6 5/11 = 14 3/11; 13 14/11 = 14 3/11; 14 3/11 = 14 3/11.