x(x*9)=x

Solution for x(x*9)=x equation:

Simplifying
x(x * 9) = x

Reorder the terms for easier multiplication:
x(9x) = x

Remove parenthesis around (9x)
x * 9x = x

Reorder the terms for easier multiplication:
9x * x = x

Multiply x * x
9x2 = x

Solving
9x2 = x

Solving for variable 'x'.

Reorder the terms:
-1x + 9x2 = x + -1x

Combine like terms: x + -1x = 0
-1x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-1 + 9x) = 0

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

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0
Subproblem 2
Set the factor '(-1 + 9x)' equal to zero and attempt to solve:

Simplifying
-1 + 9x = 0

Solving
-1 + 9x = 0

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

Add '1' to each side of the equation.
-1 + 1 + 9x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 9x = 0 + 1
9x = 0 + 1

Combine like terms: 0 + 1 = 1
9x = 1

Divide each side by '9'.
x = 0.1111111111

Simplifying
x = 0.1111111111
Solution
x = {0, 0.1111111111}