1) 0.8(100-0.04x) = 8.6480 - 0.032x = 8.64-0.032x = 8.64 - 80-0.032x = -71.36x = -71.36 / -0.032x = 2230
Ответ: x = 2230
2) x / 1.15 = 0.16x = 0.16 * 1.15x = 0.184
Ответ: x = 0.184
1) 0.8(100-0.04x) = 8.64
80 - 0.032x = 8.64
-0.032x = 8.64 - 80
-0.032x = -71.36
x = -71.36 / -0.032
x = 2230
Ответ: x = 2230
2) x / 1.15 = 0.16
x = 0.16 * 1.15
x = 0.184
Ответ: x = 0.184