3(4 -5x) - 92 = 25x
12 - 15x - 92 = 25x
- 15x - 80 = 25x
- 15x - 25x = 80
- 40x = 80
x = 80 : (-40)
x = -2
ответ: х = - 2.
3(4 -5x) - 92 = 25x
12 - 15x - 92 = 25x
- 15x - 80 = 25x
- 15x - 25x = 80
- 40x = 80
x = 80 : (-40)
x = -2
ответ: х = - 2.