(5-2x)*(4-x)-2x*(x+6)=1-x

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Solution for (5-2x)*(4-x)-2x*(x+6)=1-x equation:


Simplifying
(5 + -2x)(4 + -1x) + -2x(x + 6) = 1 + -1x

Multiply (5 + -2x) * (4 + -1x)
(5(4 + -1x) + -2x * (4 + -1x)) + -2x(x + 6) = 1 + -1x
((4 * 5 + -1x * 5) + -2x * (4 + -1x)) + -2x(x + 6) = 1 + -1x
((20 + -5x) + -2x * (4 + -1x)) + -2x(x + 6) = 1 + -1x
(20 + -5x + (4 * -2x + -1x * -2x)) + -2x(x + 6) = 1 + -1x
(20 + -5x + (-8x + 2x2)) + -2x(x + 6) = 1 + -1x

Combine like terms: -5x + -8x = -13x
(20 + -13x + 2x2) + -2x(x + 6) = 1 + -1x

Reorder the terms:
20 + -13x + 2x2 + -2x(6 + x) = 1 + -1x
20 + -13x + 2x2 + (6 * -2x + x * -2x) = 1 + -1x
20 + -13x + 2x2 + (-12x + -2x2) = 1 + -1x

Reorder the terms:
20 + -13x + -12x + 2x2 + -2x2 = 1 + -1x

Combine like terms: -13x + -12x = -25x
20 + -25x + 2x2 + -2x2 = 1 + -1x

Combine like terms: 2x2 + -2x2 = 0
20 + -25x + 0 = 1 + -1x
20 + -25x = 1 + -1x

Solving
20 + -25x = 1 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
20 + -25x + x = 1 + -1x + x

Combine like terms: -25x + x = -24x
20 + -24x = 1 + -1x + x

Combine like terms: -1x + x = 0
20 + -24x = 1 + 0
20 + -24x = 1

Add '-20' to each side of the equation.
20 + -20 + -24x = 1 + -20

Combine like terms: 20 + -20 = 0
0 + -24x = 1 + -20
-24x = 1 + -20

Combine like terms: 1 + -20 = -19
-24x = -19

Divide each side by '-24'.
x = 0.7916666667

Simplifying
x = 0.7916666667

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