Answer:
v = 61
Explanation:
Hello, of course! These are vertical angles, which means they're equal to each other, so let's set up an equation, shall we? (:
Knowing that they're equal to each other, both sides of the equation should be equal to each other as well, so...
2v + 1 = 123
Now, that we have the equation, we must solve for the variable v!
2v + 1 = 123
- 1 - 1
2v = 122
2v = 122
2 2
v = 61
Therefore, v is 61. Once again, vertical angles are equal to each other, so you set up the equation, where both sides are equal. Hope this helped and best of luck with the rest of your work! <3