9r^2+27r^2=36r

Solution for 9r^2+27r^2=36r equation:

Simplifying
9r2 + 27r2 = 36r

Combine like terms: 9r2 + 27r2 = 36r2
36r2 = 36r

Solving
36r2 = 36r

Solving for variable 'r'.

Reorder the terms:
-36r + 36r2 = 36r + -36r

Combine like terms: 36r + -36r = 0
-36r + 36r2 = 0

Factor out the Greatest Common Factor (GCF), '36r'.
36r(-1 + r) = 0

Ignore the factor 36.
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 '(-1 + r)' equal to zero and attempt to solve:

Simplifying
-1 + r = 0

Solving
-1 + r = 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 + r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + r = 0 + 1
r = 0 + 1

Combine like terms: 0 + 1 = 1
r = 1

Simplifying
r = 1
Solution
r = {0, 1}