Question

please click and watch this photo and answer me. tomorrow is my examination. ​

Answer 1

Check your question bro. I think it's wrong as angles can't be negative.

still if this the question then here is the answer.

Answer:

-40

Step-by-step explanation:

5d+40=4d. (as vertically opposite angles are equal )

d= -40.

check your question bro. it's wrong