Question

PLEASE HELP!!!

Answer 1

Answer:

x = 40

Step-by-step explanation:

x + 100 +  x = 180 {Straight line angles}

2x   + 100 = 180      {subtract 100 from both sides}

         2x = 180 - 100

         2x = 80      {Divide both sides by 2)

           x = 80/2

          x = 40

Answer 2

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40