Question

Math really be doing me like this

Answer 1

3

Explanation:

Fact to learn:

An exterior angle of a triangle = the sum of the two remote interior angles.

10x + 2 = 2x + 1 + 25

10x + 2 = 2x + 26

8x + 2 = 26

8x = 24

x = 3

Answer 2

x = 3

Explanation:

by property

2x + 1 + 25 = 10x + 2

26 - 2 = 10x - 2x

24/8 = x

3 = x