Question

Find the value of x.
A) 21
B) 27
C) 31
D) 34

Answer 1

A. 64=(3x+1)
subtract one from both sides and then divide by 3

Answer 2

The 2 angles given are vertical angles, which mean they are the same.

So we have: 3x +1 = 64

Subtract 1 from each side:

3x = 63

Divide both sides by 3:

X = 63 / 3

X = 21

The answer is A.