Question

Solve for x. Type your answer as an integer, like this: -13


log3(7 – x) = 3

Answer 1

What is the base?

Answer 2

3

Answer 3

Yes. What is the exponent?

Answer 4

Simply write in exponential form and then solve. When a base is unwritten, it is assumed to be 10.

Answer 5

i got a decimal so i did it wrong :(

Answer 6

Remember...the log is the exponent. So what is the exponent?

Answer 7

3?

Answer 8

OH I see! The base is 3.

Answer 9

Remember: \(log_a (x) = b \implies a^b = x\)

Answer 10

Yes. The base is 3 and the exponent is 3
That would be 3^3 then wouldn't it?

Answer 11

So 3^3 must equal 7-x.
Write and solve that equation.

Answer 12

-20?

Answer 13

Very good. -20 it is.

Answer 14

thank you all (:

Answer 15

yw