x * 9 = 130 + 140
x * 9 = 270
x = 270 : 9
x = 30
x : 8 = 200 − 120
x : 8 = 80
x = 80 * 8
x = 640
164 − x = 720 : 9
164 − x = 80
x = 164 − 80
x = 84
Условие:
Реши уравнения.
x * 9 = 130 + 140
x : 8 = 200 − 120
164 − x = 720 : 9
Условие:
Реши уравнения.
x * 9 = 130 + 140
x : 8 = 200 − 120
164 − x = 720 : 9
x * 9 = 130 + 140
x * 9 = 270
x = 270 : 9
x = 30
x : 8 = 200 − 120
x : 8 = 80
x = 80 * 8
x = 640
164 − x = 720 : 9
164 − x = 80
x = 164 − 80
x = 84