Question

Find the value of x if the angles below are vertical.

Answer 1

Explanation:

7x+34=10x-23 (being vertically opposite angles)

34+23=10x-7x

57=3x

57/3=x

19=x

Answer 2

x = 19

Explanation:

Since the angles are vertical, that means these angles are equal to each other:

7x + 34 = 10x - 23

7x - 10x = -23 - 34

-3x = -57

x = 19