Ответ:
1) x : 7 = 140
x = 140 · 7 = 980.
2) x · 10 = 250
x = 250 : 10 = 25.
3) 120 : x = 40
x = 120 : 40 = 3.
Ответ: x = 980; x = 25; x = 3.
1) x : 7 = 140
x = 140 · 7 = 980.
2) x · 10 = 250
x = 250 : 10 = 25.
3) 120 : x = 40
x = 120 : 40 = 3.
Ответ: x = 980; x = 25; x = 3.