Решим дробью:
38/38 - 7+11/38 = 38/38 - 18/38 = 20/38 = 10/19
1) (1/6 + 2/3) * 3 = 5/6 * 3 = 5/6 * 3/1 = 5/2 = 2 1/2
2) (17/30 - 2/15) : 13 = 13/30 : 13 = 13/30 * 1/13 = 1/30
3) (1/8 + 3/4) : 5 = 7/8 : 5 = 7/8 * 1/5 = 7/40
4) (4/3 + 1/9) * 4 = 13/9 * 4 = 52/9 = 5 7/9
5) (1/2 + 1/3) * 2 = 5/6 * 2 = 5/3 = 1 2/3
6) (1/2 - 1/3) * 3 = 1/6 * 3 = 1/2
F(1) = 1 - 1 = 0
f(-1/3) = 1 - (-1/3) = 1 + 1/3 = 1 1/3
f(0,1) = 1 - 0,1 = 0,9
(х+354)-25=483
х+354-25=483
х+329=483
х=483-329
х=154