Solid StateHard
Question
If 3x = 4x-1, then x =
Options
A.

B.

C.

D.

Solution
3x = 4x-1
taking log on both sides with base a
x loga3 = (x -1 )loga4 ⇒
If a = 3 :
If a = 2 :
If a = 4 :
taking log on both sides with base a
x loga3 = (x -1 )loga4 ⇒

If a = 3 :

If a = 2 :

If a = 4 :

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