x(9x-3)=(9x+7)(x-1)

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Solution for x(9x-3)=(9x+7)(x-1) equation:


Simplifying
x(9x + -3) = (9x + 7)(x + -1)

Reorder the terms:
x(-3 + 9x) = (9x + 7)(x + -1)
(-3 * x + 9x * x) = (9x + 7)(x + -1)
(-3x + 9x2) = (9x + 7)(x + -1)

Reorder the terms:
-3x + 9x2 = (7 + 9x)(x + -1)

Reorder the terms:
-3x + 9x2 = (7 + 9x)(-1 + x)

Multiply (7 + 9x) * (-1 + x)
-3x + 9x2 = (7(-1 + x) + 9x * (-1 + x))
-3x + 9x2 = ((-1 * 7 + x * 7) + 9x * (-1 + x))
-3x + 9x2 = ((-7 + 7x) + 9x * (-1 + x))
-3x + 9x2 = (-7 + 7x + (-1 * 9x + x * 9x))
-3x + 9x2 = (-7 + 7x + (-9x + 9x2))

Combine like terms: 7x + -9x = -2x
-3x + 9x2 = (-7 + -2x + 9x2)

Add '-9x2' to each side of the equation.
-3x + 9x2 + -9x2 = -7 + -2x + 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
-3x + 0 = -7 + -2x + 9x2 + -9x2
-3x = -7 + -2x + 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
-3x = -7 + -2x + 0
-3x = -7 + -2x

Solving
-3x = -7 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-3x + 2x = -7 + -2x + 2x

Combine like terms: -3x + 2x = -1x
-1x = -7 + -2x + 2x

Combine like terms: -2x + 2x = 0
-1x = -7 + 0
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7

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