Respuesta:
x = 52
Explicación paso a paso:
Para calcular el promedio:
(17 + 98 + 39 + 54 + x) : 5 = x
(208 + x) : 5 = x
208 + x = x . 5
208 = 5x - x
208 = 4x
208 : 4 = x
52 = x
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Respuesta:
x = 52
Explicación paso a paso:
Para calcular el promedio:
(17 + 98 + 39 + 54 + x) : 5 = x
(208 + x) : 5 = x
208 + x = x . 5
208 = 5x - x
208 = 4x
208 : 4 = x
52 = x