manuelguadiana09 manuelguadiana09
  • 14-05-2020
  • Mathematics
contestada

log 10(x + 3) – log 10(x-3) = 1

Respuesta :

Chelboy
Chelboy Chelboy
  • 17-05-2020

Answer:33/9

Step-by-step explanation:

Log10(x+3)-Log10(x-3)=1

Log10((x+3)/(x-3))=1

(x+3)/(x-3)=10^1

(x+3)/(x-3)=10

Cross multiply

x+3=10(x-3)

Open brackets

x+3=10x-30

Collect like terms

10x-x=30+3

9x=33

Divide both sides by 9

9x/9=33/9

x=33/9

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