3x(x-6)=9x

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Solution for 3x(x-6)=9x equation: 


Simplifying
3x(x + -6) = 9x

Reorder the terms:
3x(-6 + x) = 9x
(-6 * 3x + x * 3x) = 9x
(-18x + 3x2) = 9x

Solving
-18x + 3x2 = 9x

Solving for variable 'x'.

Reorder the terms:
-18x + -9x + 3x2 = 9x + -9x

Combine like terms: -18x + -9x = -27x
-27x + 3x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
-27x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-9 + x) = 0

Ignore the factor 3.

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 '(-9 + x)' equal to zero and attempt to solve:

Simplifying
-9 + x = 0

Solving
-9 + x = 0

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

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

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

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

Simplifying
x = 9
Solution
x = {0, 9}

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