x(5x-9)=(5x+9)(x-3)

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Solution for x(5x-9)=(5x+9)(x-3) equation:


Simplifying
x(5x + -9) = (5x + 9)(x + -3)

Reorder the terms:
x(-9 + 5x) = (5x + 9)(x + -3)
(-9 * x + 5x * x) = (5x + 9)(x + -3)
(-9x + 5x2) = (5x + 9)(x + -3)

Reorder the terms:
-9x + 5x2 = (9 + 5x)(x + -3)

Reorder the terms:
-9x + 5x2 = (9 + 5x)(-3 + x)

Multiply (9 + 5x) * (-3 + x)
-9x + 5x2 = (9(-3 + x) + 5x * (-3 + x))
-9x + 5x2 = ((-3 * 9 + x * 9) + 5x * (-3 + x))
-9x + 5x2 = ((-27 + 9x) + 5x * (-3 + x))
-9x + 5x2 = (-27 + 9x + (-3 * 5x + x * 5x))
-9x + 5x2 = (-27 + 9x + (-15x + 5x2))

Combine like terms: 9x + -15x = -6x
-9x + 5x2 = (-27 + -6x + 5x2)

Add '-5x2' to each side of the equation.
-9x + 5x2 + -5x2 = -27 + -6x + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-9x + 0 = -27 + -6x + 5x2 + -5x2
-9x = -27 + -6x + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-9x = -27 + -6x + 0
-9x = -27 + -6x

Solving
-9x = -27 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
-9x + 6x = -27 + -6x + 6x

Combine like terms: -9x + 6x = -3x
-3x = -27 + -6x + 6x

Combine like terms: -6x + 6x = 0
-3x = -27 + 0
-3x = -27

Divide each side by '-3'.
x = 9

Simplifying
x = 9

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