Respuesta:
El número es 4.2
Explicación paso a paso:
2x - 1.4 = 7
2x = 7 + 1.4
2x = 8.4
x = 8.4/2
x = 4.2
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Respuesta:
El número es 4.2
Explicación paso a paso:
2x - 1.4 = 7
2x = 7 + 1.4
2x = 8.4
x = 8.4/2
x = 4.2