y = 2
Пошаговое объяснение:
(3y – 6) и 2 ⋅ (2y – 4) = (3*2 – 6) и 2 ⋅ (2*2 – 4)
(3*2 – 6) = 0
2 ⋅ (2*2 – 4) = 0
