Ответ:
7 · X = 140 : 2
7 · X = 70
X = 70 : 7 = 10.
X − 39 = 65 + 29
X − 39 = 94
X = 94 + 39 = 133.
Ответ: 1) X = 10; 2) X = 133.
7 · X = 140 : 2
7 · X = 70
X = 70 : 7 = 10.
X − 39 = 65 + 29
X − 39 = 94
X = 94 + 39 = 133.
Ответ: 1) X = 10; 2) X = 133.