19x=x^2+12

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Solution for 19x=x^2+12 equation:


Simplifying
19x = x2 + 12

Reorder the terms:
19x = 12 + x2

Solving
19x = 12 + x2

Solving for variable 'x'.

Reorder the terms:
-12 + 19x + -1x2 = 12 + x2 + -12 + -1x2

Reorder the terms:
-12 + 19x + -1x2 = 12 + -12 + x2 + -1x2

Combine like terms: 12 + -12 = 0
-12 + 19x + -1x2 = 0 + x2 + -1x2
-12 + 19x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-12 + 19x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
12 + -19x + x2 = 0

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + -19x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + -19x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -19x + x2 = 0 + -12
-19x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
-19x + x2 = -12

The x term is -19x.  Take half its coefficient (-9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
-19x + 90.25 + x2 = -12 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -12 + 90.25

Combine like terms: -12 + 90.25 = 78.25
90.25 + -19x + x2 = 78.25

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 78.25

Calculate the square root of the right side: 8.845903006

Break this problem into two subproblems by setting 
(x + -9.5) equal to 8.845903006 and -8.845903006.

Subproblem 1

x + -9.5 = 8.845903006 Simplifying x + -9.5 = 8.845903006 Reorder the terms: -9.5 + x = 8.845903006 Solving -9.5 + x = 8.845903006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = 8.845903006 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 8.845903006 + 9.5 x = 8.845903006 + 9.5 Combine like terms: 8.845903006 + 9.5 = 18.345903006 x = 18.345903006 Simplifying x = 18.345903006

Subproblem 2

x + -9.5 = -8.845903006 Simplifying x + -9.5 = -8.845903006 Reorder the terms: -9.5 + x = -8.845903006 Solving -9.5 + x = -8.845903006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = -8.845903006 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -8.845903006 + 9.5 x = -8.845903006 + 9.5 Combine like terms: -8.845903006 + 9.5 = 0.654096994 x = 0.654096994 Simplifying x = 0.654096994

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.345903006, 0.654096994}

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