a) 14x - 9x = 125x = 12x = 125/x = 25
Ответ: x = 25
b) 13x + 5x = 108/18x = 5x = 54/1x = 3
Ответ: x = 3
a) 14x - 9x = 12
5x = 12
x = 125/
x = 25
Ответ: x = 25
b) 13x + 5x = 108/
18x = 5
x = 54/1
x = 3
Ответ: x = 3