180 − x = 100
x = 180 − 100
x = 80
x − 17 = 40
x = 40 + 17
x = 57
x + 24 = 50
x = 50 − 24
x = 26
Условие:
Реши уравнения:
180 − x = 100;
x − 17 = 40;
x + 24 = 50.
180 − x = 100
x = 180 − 100
x = 80
x − 17 = 40
x = 40 + 17
x = 57
x + 24 = 50
x = 50 − 24
x = 26