(X+9)(3x-9)=0

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Solution for (X+9)(3x-9)=0 equation:


Simplifying
(X + 9)(3x + -9) = 0

Reorder the terms:
(9 + X)(3x + -9) = 0

Reorder the terms:
(9 + X)(-9 + 3x) = 0

Multiply (9 + X) * (-9 + 3x)
(9(-9 + 3x) + X(-9 + 3x)) = 0
((-9 * 9 + 3x * 9) + X(-9 + 3x)) = 0
((-81 + 27x) + X(-9 + 3x)) = 0
(-81 + 27x + (-9 * X + 3x * X)) = 0
(-81 + 27x + (-9X + 3xX)) = 0

Reorder the terms:
(-81 + -9X + 27x + 3xX) = 0
(-81 + -9X + 27x + 3xX) = 0

Solving
-81 + -9X + 27x + 3xX = 0

Solving for variable 'X'.

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

Add '81' to each side of the equation.
-81 + -9X + 27x + 81 + 3xX = 0 + 81

Reorder the terms:
-81 + 81 + -9X + 27x + 3xX = 0 + 81

Combine like terms: -81 + 81 = 0
0 + -9X + 27x + 3xX = 0 + 81
-9X + 27x + 3xX = 0 + 81

Combine like terms: 0 + 81 = 81
-9X + 27x + 3xX = 81

Add '-27x' to each side of the equation.
-9X + 27x + -27x + 3xX = 81 + -27x

Combine like terms: 27x + -27x = 0
-9X + 0 + 3xX = 81 + -27x
-9X + 3xX = 81 + -27x

Reorder the terms:
-81 + -9X + 27x + 3xX = 81 + -27x + -81 + 27x

Reorder the terms:
-81 + -9X + 27x + 3xX = 81 + -81 + -27x + 27x

Combine like terms: 81 + -81 = 0
-81 + -9X + 27x + 3xX = 0 + -27x + 27x
-81 + -9X + 27x + 3xX = -27x + 27x

Combine like terms: -27x + 27x = 0
-81 + -9X + 27x + 3xX = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-27 + -3X + 9x + xX) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-27 + -3X + 9x + xX)' equal to zero and attempt to solve: Simplifying -27 + -3X + 9x + xX = 0 Solving -27 + -3X + 9x + xX = 0 Move all terms containing X to the left, all other terms to the right. Add '27' to each side of the equation. -27 + -3X + 9x + 27 + xX = 0 + 27 Reorder the terms: -27 + 27 + -3X + 9x + xX = 0 + 27 Combine like terms: -27 + 27 = 0 0 + -3X + 9x + xX = 0 + 27 -3X + 9x + xX = 0 + 27 Combine like terms: 0 + 27 = 27 -3X + 9x + xX = 27 Add '-9x' to each side of the equation. -3X + 9x + -9x + xX = 27 + -9x Combine like terms: 9x + -9x = 0 -3X + 0 + xX = 27 + -9x -3X + xX = 27 + -9x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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