Раскрываем скобки, переносим слагаемые, содержащие х влево, числа вправо
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
----------------(4/3)------------------------------(6)-------------------------
/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Ответ. (4/3 ; 6)
или (1 целая 1/3; 6)