Question

Given l ∥ m ∥ n, find the value of x.

Answer 1

-x = 17

Explanation:

Given m||n we can write the following equation:

(5x - 23)° + (7x - 1)° = 180° because the these angles are supplementary angles.

• Add like terms.

(12x - 24)° = 180°

• Add 24 to both sides.

(12x)° = 204°

• Divide both sides with 12.

x = 17