three times a number and five" translates to "3x + 5," while the phrase "three times the sum of a ... The total of six and some number. 6 + x ... The difference of a number and three. X – 3 less. Nine less a number. 9 – X.
I believe 63 would be correct
Answer:
Step-by-step explanation:
This is an exponential equation that is solved by taking the natural log of both sides. The equation is

If we are looking for x when f(x) = 64, then

Take the natural log of both sides:

The rules of logs allows us to bring the x down in front:

Divide both sides by ln(2) to get:

Do this on your calculator to get that x = 6.
You could also have just gone right to your calculator and started raising 2 to consecutive powers starting at like 3 or 4 to eventually get that 2 to the 6th power is equal to 64, but for the basics of solving log equations, you need to know how to do this.
The answer you will be dividing by is 4. hope this helps