If you mean this:

then x = 0. The property in play here is the following: Any number raised to the "0" power is equal to "1". In this case, we would need to set the exponent of 3x = 0 and solve for x...
If you mean the equation:

then to solve for x(your blank), simply divide both sides of the equation by

:
You would have x =

this can also be written as
The octagon has a total interior measure of 1080 degrees. Good luck, hope this helped!
Answer:

Step-by-step explanation:
we know that
---> by addition angle postulate
we have
----> given problem
----> given problem
substitute in the expression above

Divide by 2 both sides

The answer is 0
Let's solve your equation step-by-step.
3(|v−3|)=9
Step 1: Divide both sides by 3.
3(|v−3|)3=93
|v−3|=3
Step 2: Solve Absolute Value.
|v−3|=3
We know either v−3=3orv−3=−3
v−3=3(Possibility 1)
v−3+3=3+3(Add 3 to both sides)
v=6
v−3=−3(Possibility 2)
v−3+3=−3+3(Add 3 to both sides)
v=0
Answer:
v=6 or v=0