Respuesta:
68
Explicación paso a paso:
85 + 71 + x +2x = 360
156 + 3x = 360
3x = 204
x = 68
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Respuesta:
68
Explicación paso a paso:
85 + 71 + x +2x = 360
156 + 3x = 360
3x = 204
x = 68