x(3x-5)=(3x+6)(x-3)

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Solution for x(3x-5)=(3x+6)(x-3) equation:


Simplifying
x(3x + -5) = (3x + 6)(x + -3)

Reorder the terms:
x(-5 + 3x) = (3x + 6)(x + -3)
(-5 * x + 3x * x) = (3x + 6)(x + -3)
(-5x + 3x2) = (3x + 6)(x + -3)

Reorder the terms:
-5x + 3x2 = (6 + 3x)(x + -3)

Reorder the terms:
-5x + 3x2 = (6 + 3x)(-3 + x)

Multiply (6 + 3x) * (-3 + x)
-5x + 3x2 = (6(-3 + x) + 3x * (-3 + x))
-5x + 3x2 = ((-3 * 6 + x * 6) + 3x * (-3 + x))
-5x + 3x2 = ((-18 + 6x) + 3x * (-3 + x))
-5x + 3x2 = (-18 + 6x + (-3 * 3x + x * 3x))
-5x + 3x2 = (-18 + 6x + (-9x + 3x2))

Combine like terms: 6x + -9x = -3x
-5x + 3x2 = (-18 + -3x + 3x2)

Add '-3x2' to each side of the equation.
-5x + 3x2 + -3x2 = -18 + -3x + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-5x + 0 = -18 + -3x + 3x2 + -3x2
-5x = -18 + -3x + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-5x = -18 + -3x + 0
-5x = -18 + -3x

Solving
-5x = -18 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-5x + 3x = -18 + -3x + 3x

Combine like terms: -5x + 3x = -2x
-2x = -18 + -3x + 3x

Combine like terms: -3x + 3x = 0
-2x = -18 + 0
-2x = -18

Divide each side by '-2'.
x = 9

Simplifying
x = 9

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