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3 years ago

9

PLEASE HELP!!!

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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