2 years ago

Solve log7(x+9)-log7(10)

Mathematics

1 answer:

sveta [45]2 years ago

5 0

$\log_7(x+9)-\log_710=\log_77\qquad(x > -9)\\\log_7\dfrac{x+9}{10}=1\\\dfrac{x+9}{10}=7\\x+9=70\\x=61$

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Solve log7(x+9)-log7(10)​

Solve log7(x+9)-log7(10)