Respuesta :

nonsibi

The two angles are a same sides interior pair which means that they are supplements.

So...

x+7+3n-47 = 180

4n = 220

n = 55°

keelanM
Answer:

55°

Explanation:

(3n-47°)+(n+7°) = 180°
(co interior angles AB//CD)

Now solve the equation:

4n-40° = 180°
4n = 220°
n = 55°