-x-5(-x-4)=-(8x-1)

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Solution for -x-5(-x-4)=-(8x-1) equation:


Simplifying
-1x + -5(-1x + -4) = -1(8x + -1)

Reorder the terms:
-1x + -5(-4 + -1x) = -1(8x + -1)
-1x + (-4 * -5 + -1x * -5) = -1(8x + -1)
-1x + (20 + 5x) = -1(8x + -1)

Reorder the terms:
20 + -1x + 5x = -1(8x + -1)

Combine like terms: -1x + 5x = 4x
20 + 4x = -1(8x + -1)

Reorder the terms:
20 + 4x = -1(-1 + 8x)
20 + 4x = (-1 * -1 + 8x * -1)
20 + 4x = (1 + -8x)

Solving
20 + 4x = 1 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
20 + 4x + 8x = 1 + -8x + 8x

Combine like terms: 4x + 8x = 12x
20 + 12x = 1 + -8x + 8x

Combine like terms: -8x + 8x = 0
20 + 12x = 1 + 0
20 + 12x = 1

Add '-20' to each side of the equation.
20 + -20 + 12x = 1 + -20

Combine like terms: 20 + -20 = 0
0 + 12x = 1 + -20
12x = 1 + -20

Combine like terms: 1 + -20 = -19
12x = -19

Divide each side by '12'.
x = -1.583333333

Simplifying
x = -1.583333333

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