Реши уравнения.
x + 3 = 27
x − 3 = 27
x * 3 = 27
x : 3 = 27
Реши уравнения.
x + 3 = 27
x = 27 − 3
x = 24
x − 3 = 27
x = 27 + 3
x = 30
x * 3 = 27
x = 27 : 3
x = 9
x : 3 = 27
x = 27 * 3 = (20 + 7) * 3 = 20 * 3 + 7 * 3 = 60 + 21
x = 81