7:(a-2) = 7/(a-2)
Знаменатель в разных вариантах:1) 5a-107/(a-2) = 7/(a-2) * (5/(5)) = 35/(5a-10)
2) 6-3a7/(a-2) = 7/(a-2) * (-3/(-3)) = -21/(3a-6)
7:(a-2) = 7/(a-2)
Знаменатель в разных вариантах:
1) 5a-10
7/(a-2) = 7/(a-2) * (5/(5)) = 35/(5a-10)
2) 6-3a
7/(a-2) = 7/(a-2) * (-3/(-3)) = -21/(3a-6)