Question

I don’t know I need help

Answer 1

`\boxed{x \degree = 34\degree}`

Explanation:

`= > (x + 12) \degree + 100 \degree + x \degree = 180 \\ \\ = > x \degree + 12 \degree + 100 \degree + x \degree = 180 \degree \\ \\ = > 2x \degree + 112 \degree = 180 \degree \\ \\ = > 2x \degree = 180 \degree - 112 \degree \\ \\ = > 2x \degree = 68 \degree \\ \\ = > x \degree = (68)/(2) \degree \\ \\ = > x \degree = 34\degree`

Answer 2

x=34

Explanation:

x+(x+12)+100=180

2x+12=80

2x=68

x=34

USE SUPPLEMENTARY!! STRAIGHT LINE= 180 degrees! :))