Respuesta:
Alternativa "c" * :)
Explicación paso a paso:
90 + 40 + 3x + 5x + 10 = 180
140 + 8x = 180
8x = 180 - 140
8x = 40
x = 40/8
x = 5º
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Respuesta:
Alternativa "c" * :)
Explicación paso a paso:
90 + 40 + 3x + 5x + 10 = 180
140 + 8x = 180
8x = 180 - 140
8x = 40
x = 40/8
x = 5º