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Log(2x - 7) - log(x - 1) = log5?

Log(2x - 7) - log(x - 1) = log5.

0Kmilox

En resumen

Log(2x - 7) - log(x - 1) = log 5 Propiedades log[(2x - 7) / (x - 1)] = log 5 (2x - 7) / (x - 1) = 5 2x - 7 = 5(x - 1) 2x - 7 = 5x - 5 2x - 5x = - 5 + 7 - 3x = 2 ( - 1) 3x = - 2 x = - 2 / 3.

Mejor respuesta

AngieMontaño

9

Log(2x - 7) - log(x - 1) = log 5

Propiedades

log[(2x - 7) / (x - 1)] = log 5

(2x - 7) / (x - 1) = 5

2x - 7 = 5(x - 1)

2x - 7 = 5x - 5

2x - 5x = - 5 + 7 - 3x = 2 ( - 1)

3x = - 2

x = - 2 / 3.