50 - 2((27 + x) - 12) = 14
50 - 2(27 + x - 12) = 1450 - 2(15 + x) = 1450 - 30 - 2x = 1420 - 2x = 14-2x = 14 - 20-2x = -6x = -6 / -2x = 3
Ответ: x = 3.
50 - 2((27 + x) - 12) = 14
50 - 2(27 + x - 12) = 14
50 - 2(15 + x) = 14
50 - 30 - 2x = 14
20 - 2x = 14
-2x = 14 - 20
-2x = -6
x = -6 / -2
x = 3
Ответ: x = 3.