Question

Q.2)
If log(5x - 9) - log(x + 3) = log 2,
then x=
A) 3
C) 2
D) 7
B) 5
​

Answer 1

Answer:

log (5x-9)-log (x+3)=log 2

=> log (5x-9)/(x+3)=log 2

=>( 5x-9)/(x+3)=2

=> 5x-9=2(x+3)

=> 5x-9=2x+6

=> 5x-2x=6+9=15

=> 3x=15

=> x=15/3

=> x=5