|84-5x|=64
Разберем два возможных случая:
1) 84 - 5x = 64-5x = 64 - 84-5x = -20x = -20 / -5x = 4
2) 84 - 5x = -64-5x = -64 - 84-5x = -148x = -148 / -5x = 29.6
Ответ: x = 4 или x = 29.6
|84-5x|=64
Разберем два возможных случая:
1) 84 - 5x = 64
-5x = 64 - 84
-5x = -20
x = -20 / -5
x = 4
2) 84 - 5x = -64
-5x = -64 - 84
-5x = -148
x = -148 / -5
x = 29.6
Ответ: x = 4 или x = 29.6