Ответ:
должно быть верно! но лучше перепроверь
Ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
Умножаем всё на 6 x--4x+18x= -120 15x=-120 x= -8
прикрепила.........2 номера