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elena55 [62]
3 years ago
9

PLEASE HELP!!!

Mathematics
2 answers:
nika2105 [10]3 years ago
4 0

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

Yuki888 [10]3 years ago
3 0

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40

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