Question

Two parallel lines are crossed by a transversal. What is the value of x?

A. x = 12
B. x = 14
C. x = 22
D. x = 24

Answer 1

5x + 5 + 115 = 180
5x + 120 = 180
5x = 180 - 120
5x = 60
x = 60/5
x = 12

Answer 2

x = 12

Step-by-step explanation

The two given angles are supplementary angles. That means that the add up to 180 degrees.

(5x + 5) + 115 = 180

5x +5 + 115 = 180

5x + 120 = 180

5x= 180 - 120

5x = 60

x = 12