Пошаговое объяснение:
3. 9/14х - 2. 17/21 = 1. 1/9
3. 9/14х = 1. 1/9 + 2. 17/21
3. 9/14х = 1. 7/63 + 2. 51/63
3. 9/14x = 3. 58/63
51/14x = 247/63
х = 247/63 : 51/14
х = 247/63 * 14/51
х = 247/9 * 2/51
х = 494/459
х = 1. 35/459
Пошаговое объяснение:
3. 9/14х - 2. 17/21 = 1. 1/9
3. 9/14х = 1. 1/9 + 2. 17/21
3. 9/14х = 1. 7/63 + 2. 51/63
3. 9/14x = 3. 58/63
51/14x = 247/63
х = 247/63 : 51/14
х = 247/63 * 14/51
х = 247/9 * 2/51
х = 494/459
х = 1. 35/459