3b^2=9b

Solution for 3b^2=9b equation:

Simplifying
3b2 = 9b

Solving
3b2 = 9b

Solving for variable 'b'.

Reorder the terms:
-9b + 3b2 = 9b + -9b

Combine like terms: 9b + -9b = 0
-9b + 3b2 = 0

Factor out the Greatest Common Factor (GCF), '3b'.
3b(-3 + b) = 0

Ignore the factor 3.
Subproblem 1
Set the factor 'b' equal to zero and attempt to solve:

Simplifying
b = 0

Solving
b = 0

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

Simplifying
b = 0
Subproblem 2
Set the factor '(-3 + b)' equal to zero and attempt to solve:

Simplifying
-3 + b = 0

Solving
-3 + b = 0

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

Add '3' to each side of the equation.
-3 + 3 + b = 0 + 3

Combine like terms: -3 + 3 = 0
0 + b = 0 + 3
b = 0 + 3

Combine like terms: 0 + 3 = 3
b = 3

Simplifying
b = 3
Solution
b = {0, 3}