Answer:
A. 27
Explanation:
A straight line should equal to 180 degrees. So if you plug in the answers instead of x the only answer would equal to 180 is A.
x = 27° (A)
5x° + (x + 18)° = 180°
(5x + x)° + 18° = 180°
6x° + 18° = 180°
6x° = 180° - 18°
6x° = 162°
x° = 162 ÷ 6
x° = 27°
So, the value of x is 27° (A)
Hope it helpful and useful :)
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