Question

HELP QUICK plz!!!!

Solve for x

Answer 1

x = 13.8

Explanation:

Theorem:

In a triangle, the angles opposite congruent sides are congruent.

The unlabeled angle also measures 5x.

The sum of the measures of the angles is 180.

5x + 5x + 42 = 180

10x + 42 = 180

10x = 138

x = 13.8