Explicación paso a paso:
90° - x = 2(180° - 4x)
90° - x = 360° - 8x
-x + 8x = 360° - 90°
7x = 270°
x = 270°:7
x = 38° 34´ 17,14´´
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Explicación paso a paso:
90° - x = 2(180° - 4x)
90° - x = 360° - 8x
-x + 8x = 360° - 90°
7x = 270°
x = 270°:7
x = 38° 34´ 17,14´´