x-(x+17)=x(11-3x)

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Solution for x-(x+17)=x(11-3x) equation:


Simplifying
x + -1(x + 17) = x(11 + -3x)

Reorder the terms:
x + -1(17 + x) = x(11 + -3x)
x + (17 * -1 + x * -1) = x(11 + -3x)
x + (-17 + -1x) = x(11 + -3x)

Reorder the terms:
-17 + x + -1x = x(11 + -3x)

Combine like terms: x + -1x = 0
-17 + 0 = x(11 + -3x)
-17 = x(11 + -3x)
-17 = (11 * x + -3x * x)
-17 = (11x + -3x2)

Solving
-17 = 11x + -3x2

Solving for variable 'x'.

Reorder the terms:
-17 + -11x + 3x2 = 11x + -11x + -3x2 + 3x2

Combine like terms: 11x + -11x = 0
-17 + -11x + 3x2 = 0 + -3x2 + 3x2
-17 + -11x + 3x2 = -3x2 + 3x2

Combine like terms: -3x2 + 3x2 = 0
-17 + -11x + 3x2 = 0

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
-5.666666667 + -3.666666667x + x2 = 0

Move the constant term to the right:

Add '5.666666667' to each side of the equation.
-5.666666667 + -3.666666667x + 5.666666667 + x2 = 0 + 5.666666667

Reorder the terms:
-5.666666667 + 5.666666667 + -3.666666667x + x2 = 0 + 5.666666667

Combine like terms: -5.666666667 + 5.666666667 = 0.000000000
0.000000000 + -3.666666667x + x2 = 0 + 5.666666667
-3.666666667x + x2 = 0 + 5.666666667

Combine like terms: 0 + 5.666666667 = 5.666666667
-3.666666667x + x2 = 5.666666667

The x term is -3.666666667x.  Take half its coefficient (-1.833333334).
Square it (3.361111114) and add it to both sides.

Add '3.361111114' to each side of the equation.
-3.666666667x + 3.361111114 + x2 = 5.666666667 + 3.361111114

Reorder the terms:
3.361111114 + -3.666666667x + x2 = 5.666666667 + 3.361111114

Combine like terms: 5.666666667 + 3.361111114 = 9.027777781
3.361111114 + -3.666666667x + x2 = 9.027777781

Factor a perfect square on the left side:
(x + -1.833333334)(x + -1.833333334) = 9.027777781

Calculate the square root of the right side: 3.004626063

Break this problem into two subproblems by setting 
(x + -1.833333334) equal to 3.004626063 and -3.004626063.

Subproblem 1

x + -1.833333334 = 3.004626063 Simplifying x + -1.833333334 = 3.004626063 Reorder the terms: -1.833333334 + x = 3.004626063 Solving -1.833333334 + x = 3.004626063 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.833333334' to each side of the equation. -1.833333334 + 1.833333334 + x = 3.004626063 + 1.833333334 Combine like terms: -1.833333334 + 1.833333334 = 0.000000000 0.000000000 + x = 3.004626063 + 1.833333334 x = 3.004626063 + 1.833333334 Combine like terms: 3.004626063 + 1.833333334 = 4.837959397 x = 4.837959397 Simplifying x = 4.837959397

Subproblem 2

x + -1.833333334 = -3.004626063 Simplifying x + -1.833333334 = -3.004626063 Reorder the terms: -1.833333334 + x = -3.004626063 Solving -1.833333334 + x = -3.004626063 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.833333334' to each side of the equation. -1.833333334 + 1.833333334 + x = -3.004626063 + 1.833333334 Combine like terms: -1.833333334 + 1.833333334 = 0.000000000 0.000000000 + x = -3.004626063 + 1.833333334 x = -3.004626063 + 1.833333334 Combine like terms: -3.004626063 + 1.833333334 = -1.171292729 x = -1.171292729 Simplifying x = -1.171292729

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.837959397, -1.171292729}

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