а) 4y - 29 = 314y = 31 + 294y = 60y = 60/4y = 15
б) 48 / (65 - z) = 1248 = 12(65 - z)48 = 780 - 12z12z = 732z = 732/12z = 61
а) 4y - 29 = 31
4y = 31 + 29
4y = 60
y = 60/4
y = 15
б) 48 / (65 - z) = 12
48 = 12(65 - z)
48 = 780 - 12z
12z = 732
z = 732/12
z = 61