(x-1)(x-5)=(x+5)(x-4)

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Solution for (x-1)(x-5)=(x+5)(x-4) equation:


Simplifying
(x + -1)(x + -5) = (x + 5)(x + -4)

Reorder the terms:
(-1 + x)(x + -5) = (x + 5)(x + -4)

Reorder the terms:
(-1 + x)(-5 + x) = (x + 5)(x + -4)

Multiply (-1 + x) * (-5 + x)
(-1(-5 + x) + x(-5 + x)) = (x + 5)(x + -4)
((-5 * -1 + x * -1) + x(-5 + x)) = (x + 5)(x + -4)
((5 + -1x) + x(-5 + x)) = (x + 5)(x + -4)
(5 + -1x + (-5 * x + x * x)) = (x + 5)(x + -4)
(5 + -1x + (-5x + x2)) = (x + 5)(x + -4)

Combine like terms: -1x + -5x = -6x
(5 + -6x + x2) = (x + 5)(x + -4)

Reorder the terms:
5 + -6x + x2 = (5 + x)(x + -4)

Reorder the terms:
5 + -6x + x2 = (5 + x)(-4 + x)

Multiply (5 + x) * (-4 + x)
5 + -6x + x2 = (5(-4 + x) + x(-4 + x))
5 + -6x + x2 = ((-4 * 5 + x * 5) + x(-4 + x))
5 + -6x + x2 = ((-20 + 5x) + x(-4 + x))
5 + -6x + x2 = (-20 + 5x + (-4 * x + x * x))
5 + -6x + x2 = (-20 + 5x + (-4x + x2))

Combine like terms: 5x + -4x = 1x
5 + -6x + x2 = (-20 + 1x + x2)

Add '-1x2' to each side of the equation.
5 + -6x + x2 + -1x2 = -20 + 1x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
5 + -6x + 0 = -20 + 1x + x2 + -1x2
5 + -6x = -20 + 1x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
5 + -6x = -20 + 1x + 0
5 + -6x = -20 + 1x

Solving
5 + -6x = -20 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
5 + -6x + -1x = -20 + 1x + -1x

Combine like terms: -6x + -1x = -7x
5 + -7x = -20 + 1x + -1x

Combine like terms: 1x + -1x = 0
5 + -7x = -20 + 0
5 + -7x = -20

Add '-5' to each side of the equation.
5 + -5 + -7x = -20 + -5

Combine like terms: 5 + -5 = 0
0 + -7x = -20 + -5
-7x = -20 + -5

Combine like terms: -20 + -5 = -25
-7x = -25

Divide each side by '-7'.
x = 3.571428571

Simplifying
x = 3.571428571

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