Verified answer

Ответ:

14

Пошаговое объяснение:

CD = BD - BC

CD = 27 + x - (3x + 47) = 27 + x - 3x - 47 = - 2x - 20

CE = CD + DE = - 2x - 20 + 10 = - 2x - 10

С другой стороны, СЕ = х + 26,

x + 26 = - 2x - 10

3x = - 36

x = - 12

CE = x + 26 = - 12 + 26 = 14