Question

Pls help :)

Find the value of x

Answer 1

x = 20

Explanation:

You have pointed out the angles are supplementary, so they add to 180.

Add both angles to equal 180.

7x + x + 20 = 180

Combine like terms.

8x + 20 = 180

Subtract 20 from both sides.

8x = 160

Divide out the 8 to get x.

x = 20