12x*4x+5=5x+7

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Solution for 12x*4x+5=5x+7 equation:


Simplifying
12x * 4x + 5 = 5x + 7

Reorder the terms for easier multiplication:
12 * 4x * x + 5 = 5x + 7

Multiply 12 * 4
48x * x + 5 = 5x + 7

Multiply x * x
48x2 + 5 = 5x + 7

Reorder the terms:
5 + 48x2 = 5x + 7

Reorder the terms:
5 + 48x2 = 7 + 5x

Solving
5 + 48x2 = 7 + 5x

Solving for variable 'x'.

Reorder the terms:
5 + -7 + -5x + 48x2 = 7 + 5x + -7 + -5x

Combine like terms: 5 + -7 = -2
-2 + -5x + 48x2 = 7 + 5x + -7 + -5x

Reorder the terms:
-2 + -5x + 48x2 = 7 + -7 + 5x + -5x

Combine like terms: 7 + -7 = 0
-2 + -5x + 48x2 = 0 + 5x + -5x
-2 + -5x + 48x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
-2 + -5x + 48x2 = 0

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

Divide each side by '48'.
-0.04166666667 + -0.1041666667x + x2 = 0

Move the constant term to the right:

Add '0.04166666667' to each side of the equation.
-0.04166666667 + -0.1041666667x + 0.04166666667 + x2 = 0 + 0.04166666667

Reorder the terms:
-0.04166666667 + 0.04166666667 + -0.1041666667x + x2 = 0 + 0.04166666667

Combine like terms: -0.04166666667 + 0.04166666667 = 0.00000000000
0.00000000000 + -0.1041666667x + x2 = 0 + 0.04166666667
-0.1041666667x + x2 = 0 + 0.04166666667

Combine like terms: 0 + 0.04166666667 = 0.04166666667
-0.1041666667x + x2 = 0.04166666667

The x term is -0.1041666667x.  Take half its coefficient (-0.05208333335).
Square it (0.002712673613) and add it to both sides.

Add '0.002712673613' to each side of the equation.
-0.1041666667x + 0.002712673613 + x2 = 0.04166666667 + 0.002712673613

Reorder the terms:
0.002712673613 + -0.1041666667x + x2 = 0.04166666667 + 0.002712673613

Combine like terms: 0.04166666667 + 0.002712673613 = 0.044379340283
0.002712673613 + -0.1041666667x + x2 = 0.044379340283

Factor a perfect square on the left side:
(x + -0.05208333335)(x + -0.05208333335) = 0.044379340283

Calculate the square root of the right side: 0.210664046

Break this problem into two subproblems by setting 
(x + -0.05208333335) equal to 0.210664046 and -0.210664046.

Subproblem 1

x + -0.05208333335 = 0.210664046 Simplifying x + -0.05208333335 = 0.210664046 Reorder the terms: -0.05208333335 + x = 0.210664046 Solving -0.05208333335 + x = 0.210664046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.05208333335' to each side of the equation. -0.05208333335 + 0.05208333335 + x = 0.210664046 + 0.05208333335 Combine like terms: -0.05208333335 + 0.05208333335 = 0.00000000000 0.00000000000 + x = 0.210664046 + 0.05208333335 x = 0.210664046 + 0.05208333335 Combine like terms: 0.210664046 + 0.05208333335 = 0.26274737935 x = 0.26274737935 Simplifying x = 0.26274737935

Subproblem 2

x + -0.05208333335 = -0.210664046 Simplifying x + -0.05208333335 = -0.210664046 Reorder the terms: -0.05208333335 + x = -0.210664046 Solving -0.05208333335 + x = -0.210664046 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.05208333335' to each side of the equation. -0.05208333335 + 0.05208333335 + x = -0.210664046 + 0.05208333335 Combine like terms: -0.05208333335 + 0.05208333335 = 0.00000000000 0.00000000000 + x = -0.210664046 + 0.05208333335 x = -0.210664046 + 0.05208333335 Combine like terms: -0.210664046 + 0.05208333335 = -0.15858071265 x = -0.15858071265 Simplifying x = -0.15858071265

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.26274737935, -0.15858071265}

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