Question

2x + 45




(Will be marked brainlist)

Answer 1

Answer:

x = 45°

Step-by-step explanation:

We know that (2x + 45)° and x° are adjacent angles, so they add up to 180°.

(2x + 45) + x = 180

3x + 45 = 180

3x = 180 - 45

3x = 135

x = $\frac{135}{3}$

x = 45°