x(6x-6)=(6x+9)(x-4)

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Solution for x(6x-6)=(6x+9)(x-4) equation:


Simplifying
x(6x + -6) = (6x + 9)(x + -4)

Reorder the terms:
x(-6 + 6x) = (6x + 9)(x + -4)
(-6 * x + 6x * x) = (6x + 9)(x + -4)
(-6x + 6x2) = (6x + 9)(x + -4)

Reorder the terms:
-6x + 6x2 = (9 + 6x)(x + -4)

Reorder the terms:
-6x + 6x2 = (9 + 6x)(-4 + x)

Multiply (9 + 6x) * (-4 + x)
-6x + 6x2 = (9(-4 + x) + 6x * (-4 + x))
-6x + 6x2 = ((-4 * 9 + x * 9) + 6x * (-4 + x))
-6x + 6x2 = ((-36 + 9x) + 6x * (-4 + x))
-6x + 6x2 = (-36 + 9x + (-4 * 6x + x * 6x))
-6x + 6x2 = (-36 + 9x + (-24x + 6x2))

Combine like terms: 9x + -24x = -15x
-6x + 6x2 = (-36 + -15x + 6x2)

Add '-6x2' to each side of the equation.
-6x + 6x2 + -6x2 = -36 + -15x + 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-6x + 0 = -36 + -15x + 6x2 + -6x2
-6x = -36 + -15x + 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-6x = -36 + -15x + 0
-6x = -36 + -15x

Solving
-6x = -36 + -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
-6x + 15x = -36 + -15x + 15x

Combine like terms: -6x + 15x = 9x
9x = -36 + -15x + 15x

Combine like terms: -15x + 15x = 0
9x = -36 + 0
9x = -36

Divide each side by '9'.
x = -4

Simplifying
x = -4

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