Question

Find the value of x for which the lines a and b are parallel.

An image of two lines and a transversal.

Question 11 options:

20


2


23


19

Answer 1

x = 19

Explanation:

148 and 7x+15 are alternate interior angles and alternate interior angles are equal when the lines are parallel

148 = 7x+15

Subtract 15 from each side

148-15 = 7x+15-15

133 =7x

Divide each side by 7

133/7 =7x/7

19=x