The angles below are supplementary. What is the value of x? (5 points)
2 answers:
Answer:
Step-by-step explanation:
As the angles are supplementary, they sum up to 180
Hence, 3x+40+80=180
3x+120=180
3x=60
x=20
Like the person said above me the answer would be x=20 because 3x=60 just so you can have reassurance that they are right. :)
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