а) x + 3 = 5
x = 5 - 3
5 - x = 3
б) x - 4 = 9
x = 9 + 4
x - 9 = 4
в) 2k = m
k = m / 2
m / k = 2
г) 6n = m
n = m / 6
m / n = 6
а) x + 3 = 5
x = 5 - 3
5 - x = 3
б) x - 4 = 9
x = 9 + 4
x - 9 = 4
в) 2k = m
k = m / 2
m / k = 2
г) 6n = m
n = m / 6
m / n = 6