I know the answer already but can someone explain it please
2187= 3^x
Answer is x=7

3^x = 2187 is equivalent to log 3 (2187) = x.  (the three is the small number that goes lower next to the g). Then, use a calculator to do log(2187) / log(3)

Step-by-step explanation:

Step-by-step explanation:

3

x

=2187

Use the rules of exponents and logarithms to solve the equation.

3

x

=2187

Take the logarithm of both sides of the equation.

log(3

x

)=log(2187)

The logarithm of a number raised to a power is the power times the logarithm of the number.

xlog(3)=log(2187)

Divide both sides by log(3).

x=

log(3)

log(2187)

​

By the change-of-base formula  

log(b)

log(a)

​

=log^3  (a).

x=log ^3 (2187)

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}