Question

What is the solution to the equation 7 ^(–3x) ≈ 9 ?

Thanks!

Answer 1

Try to \(\log_7\) both parts of the equation.

Answer 2

This lesson is like another language more help would be appriciated! Thanks

Answer 3

You have \(7^{-3x}=9\), and you want to find \(x\), right?

Answer 4

yes

Answer 5

Do you know what is logarithm?

Answer 6

somewhat..

Answer 7

Ok. Would you like to understand it or just to get an answer?

Answer 8

both

Answer 9

I will just write the solution. Ask for help if you have problems.

Answer 10

klim i dont have alot of time could you just provide the answer please

Answer 11

\(\log_77^{-3x}=\log_79\)
\(-3x\cdot\log_77=\log_79\)
\(-3x\cdot1=\log_79\)
\(x=-\frac13\log_79\)

Answer 12

and in decimal form thats?

Answer 13

-0.376383

Answer 14

thanks alot can you do one more please?

Answer 15

Which of the following is equivalent to log 2x 3y ?

Answer 16

the 2x is like lower than the rest

Answer 17

Hm.. I dont understand you, write in another way.