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I need your help with a question

I need your help with a question-example-1
User Velimir Mlaker
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1 Answer

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Answer:

x = 20

Explanation:

5x + 80 = 180 ==> a straight line has the measure of 180 degrees

5x + 80 - 80 = 180 - 80 ==> subtract 80 on both sides to isolate x

5x = 100

5x/5 = 100/5 ==> divide by 5 on both sides to isolate x

x = 20 ==> simplify

User Macker
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