Answer:
∠D = 14°
Step-by-step explanation:
Vertical angles are congruent, hence
2x - 10 = - x + 26 ( add x to both sides )
3x - 10 = 26 ( add 10 to both sides )
3x = 36 ( divide both sides by 3 )
x = 12
Hence
∠D = 2x - 10 = (2 × 12) - 10 = 24 - 10 = 14°
