Respuesta:
D) 40
Explicación paso a paso:
6x+7x+50+x+30=360
14x=360-80
14x=280
x=20
2x=40
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Respuesta:
D) 40
Explicación paso a paso:
6x+7x+50+x+30=360
14x=360-80
14x=280
x=20
2x=40