Завдання 1101 - 1200 » 1181 (3-6)

5) 2/9 – (1/9 – х) = 41/9; 2/9 – 1/9 + х = 41/9; 1/9 + х = 41/9; х = 41/9 – 1/9; х = 4. 6) (х + 7/15) – 2/15 = 41/15; х + 7/15 – 2/15 = 41/15; х + 5/15 = 41/15; х = 316/15 – 5/15; х = 311/15.