r=2(pi)(r)(h)

Solution for r=2(pi)(r)(h) equation:

Simplifying
r = 2(pi)(r)(h)

Multiply ip * r
r = 2ipr * h

Multiply ipr * h
r = 2hipr

Solving
r = 2hipr

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-2hipr' to each side of the equation.
-2hipr + r = 2hipr + -2hipr

Combine like terms: 2hipr + -2hipr = 0
-2hipr + r = 0

Factor out the Greatest Common Factor (GCF), 'r'.
r(-2hip + 1) = 0

Subproblem 1
Set the factor 'r' equal to zero and attempt to solve:

Simplifying
r = 0

Solving
r = 0

Move all terms containing r to the left, all other terms to the right.

Simplifying
r = 0
Subproblem 2
Set the factor '(-2hip + 1)' equal to zero and attempt to solve:

Simplifying
-2hip + 1 = 0

Reorder the terms:
1 + -2hip = 0

Solving
1 + -2hip = 0

Move all terms containing r to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -2hip = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2hip = 0 + -1
-2hip = 0 + -1

Combine like terms: 0 + -1 = -1
-2hip = -1

Add '2hip' to each side of the equation.
-2hip + 2hip = -1 + 2hip

Combine like terms: -2hip + 2hip = 0
0 = -1 + 2hip

Simplifying
0 = -1 + 2hip

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
r = {0}