3y^2=9y

Solution for 3y^2=9y equation:

Simplifying
3y2 = 9y

Solving
3y2 = 9y

Solving for variable 'y'.

Reorder the terms:
-9y + 3y2 = 9y + -9y

Combine like terms: 9y + -9y = 0
-9y + 3y2 = 0

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

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

Simplifying
y = 0

Solving
y = 0

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

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

Simplifying
-3 + y = 0

Solving
-3 + y = 0

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

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

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

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

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