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Sagot :
Step-by-step explanation:
x + (4x - 20) = 180
5x - 20 = 180
5x = 180 + 20
5x = 200
x = 200/5
x = 40°
Option → D
Answer:
[tex]x = 40[/tex]
Answer D is correct
Step-by-step explanation:
Angles in a straight line is added up to 180°
Therefore,
[tex]x + 4x - 20 = 180 \\ 5x - 20 = 180 \\ 5x = 180 + 20 \\ 5x = 200 \\ \frac{5x}{5} = \frac{200}{5} \\ x = 40 \degree[/tex]
Hope this helps you.
Let me know if you have any other questions:-):-)
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