1. What is the value of x in this diagram?

Question

There's two lines crossing each other. One angle is 7x+7, and another one is 47, the next is 112.

A) 17
B) 15
C) 105
D) 68

Is the answer B? I got B when I solved but I still would like someone to check, thank you!

Answer 1

vertical angles are equal, so

7x+7=112
x=15

you are correct.