Корее 5x-10 при равной 2; 2. 2; 5. 2; 22 найти значение выражения

5x-10 = 25х = 2 + 105х = 12х = 12/5 = 24/10 = 2,4.5x-10 = 2. 25х = 2,2 + 105х = 12,2х = 12,2/5 = 24,4/10 = 2,44.5x-10 =5. 25х = 5,2 + 105х = 15,2х = 15,2/5 = 30,4/10 = 3,04.5x-10 = 225х = 22 + 105х = 32х = 32/5 = 64/10 = 6,4.