Question

Help please I don’t understand any of this

Answer 1

x=20

Explanation:

2(7x)+2(x+20)=360

Answer 2

The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.

To find x, add the two angles together to equal 180:

7x + x+20 = 180

Combine like terms:

8x + 20 = 180

Subtract 20 from both sides:

8x = 160

Divide both sides by 8:

X = 20