20x^2-6x=6x^2-13x+3

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Solution for 20x^2-6x=6x^2-13x+3 equation:


Simplifying
20x2 + -6x = 6x2 + -13x + 3

Reorder the terms:
-6x + 20x2 = 6x2 + -13x + 3

Reorder the terms:
-6x + 20x2 = 3 + -13x + 6x2

Solving
-6x + 20x2 = 3 + -13x + 6x2

Solving for variable 'x'.

Reorder the terms:
-3 + -6x + 13x + 20x2 + -6x2 = 3 + -13x + 6x2 + -3 + 13x + -6x2

Combine like terms: -6x + 13x = 7x
-3 + 7x + 20x2 + -6x2 = 3 + -13x + 6x2 + -3 + 13x + -6x2

Combine like terms: 20x2 + -6x2 = 14x2
-3 + 7x + 14x2 = 3 + -13x + 6x2 + -3 + 13x + -6x2

Reorder the terms:
-3 + 7x + 14x2 = 3 + -3 + -13x + 13x + 6x2 + -6x2

Combine like terms: 3 + -3 = 0
-3 + 7x + 14x2 = 0 + -13x + 13x + 6x2 + -6x2
-3 + 7x + 14x2 = -13x + 13x + 6x2 + -6x2

Combine like terms: -13x + 13x = 0
-3 + 7x + 14x2 = 0 + 6x2 + -6x2
-3 + 7x + 14x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
-3 + 7x + 14x2 = 0

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

Divide each side by '14'.
-0.2142857143 + 0.5x + x2 = 0

Move the constant term to the right:

Add '0.2142857143' to each side of the equation.
-0.2142857143 + 0.5x + 0.2142857143 + x2 = 0 + 0.2142857143

Reorder the terms:
-0.2142857143 + 0.2142857143 + 0.5x + x2 = 0 + 0.2142857143

Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000
0.0000000000 + 0.5x + x2 = 0 + 0.2142857143
0.5x + x2 = 0 + 0.2142857143

Combine like terms: 0 + 0.2142857143 = 0.2142857143
0.5x + x2 = 0.2142857143

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 0.2142857143 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 0.2142857143 + 0.0625

Combine like terms: 0.2142857143 + 0.0625 = 0.2767857143
0.0625 + 0.5x + x2 = 0.2767857143

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 0.2767857143

Calculate the square root of the right side: 0.526104281

Break this problem into two subproblems by setting 
(x + 0.25) equal to 0.526104281 and -0.526104281.

Subproblem 1

x + 0.25 = 0.526104281 Simplifying x + 0.25 = 0.526104281 Reorder the terms: 0.25 + x = 0.526104281 Solving 0.25 + x = 0.526104281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 0.526104281 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 0.526104281 + -0.25 x = 0.526104281 + -0.25 Combine like terms: 0.526104281 + -0.25 = 0.276104281 x = 0.276104281 Simplifying x = 0.276104281

Subproblem 2

x + 0.25 = -0.526104281 Simplifying x + 0.25 = -0.526104281 Reorder the terms: 0.25 + x = -0.526104281 Solving 0.25 + x = -0.526104281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -0.526104281 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -0.526104281 + -0.25 x = -0.526104281 + -0.25 Combine like terms: -0.526104281 + -0.25 = -0.776104281 x = -0.776104281 Simplifying x = -0.776104281

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.276104281, -0.776104281}

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