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3 years ago

Solve log (base 5)(9x-4)=1

Mathematics

1 answer:

kiruha [24]3 years ago

3 0

$\log_5(9x-4)=1 \\ 9x-4=5^1 \\ 9x-4=5 \\ 9x=5+4 \\ 9x=9 \\ x= \frac{9}{9} \\ x=1$

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Step-by-step explanation:

As the statement is ‘‘if and only if’’ we need to prove two implications

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