Question

Use same image

Select an equation to find the value of x.

(x+12)=3x


(x+12)+3x=90


(x+12)−3x=180


(x+12)+3x=180


then
tell me where the angles go on the image.
126° left or right 56° left or right

Answer 1

(x+12)+3x=180

Explanation:

Hope it helps you in your learning process

(x+12)+3x=180. (straight line angles)

4x + 12 = 180

4x = 180 - 12

4x = 168

x = 168/4

x = 42°

Answer 2

`(x + 12) + 3x = 180`

Explanation:

4x=168

x=42 left

x+12=54

3x=126 right