13y+3=12y^2

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Solution for 13y+3=12y^2 equation:


Simplifying
13y + 3 = 12y2

Reorder the terms:
3 + 13y = 12y2

Solving
3 + 13y = 12y2

Solving for variable 'y'.

Combine like terms: 12y2 + -12y2 = 0
3 + 13y + -12y2 = 0

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
-0.25 + -1.083333333y + y2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -1.083333333y + 0.25 + y2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -1.083333333y + y2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -1.083333333y + y2 = 0 + 0.25
-1.083333333y + y2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
-1.083333333y + y2 = 0.25

The y term is -1.083333333y.  Take half its coefficient (-0.5416666665).
Square it (0.2934027776) and add it to both sides.

Add '0.2934027776' to each side of the equation.
-1.083333333y + 0.2934027776 + y2 = 0.25 + 0.2934027776

Reorder the terms:
0.2934027776 + -1.083333333y + y2 = 0.25 + 0.2934027776

Combine like terms: 0.25 + 0.2934027776 = 0.5434027776
0.2934027776 + -1.083333333y + y2 = 0.5434027776

Factor a perfect square on the left side:
(y + -0.5416666665)(y + -0.5416666665) = 0.5434027776

Calculate the square root of the right side: 0.737158584

Break this problem into two subproblems by setting 
(y + -0.5416666665) equal to 0.737158584 and -0.737158584.

Subproblem 1

y + -0.5416666665 = 0.737158584 Simplifying y + -0.5416666665 = 0.737158584 Reorder the terms: -0.5416666665 + y = 0.737158584 Solving -0.5416666665 + y = 0.737158584 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.5416666665' to each side of the equation. -0.5416666665 + 0.5416666665 + y = 0.737158584 + 0.5416666665 Combine like terms: -0.5416666665 + 0.5416666665 = 0.0000000000 0.0000000000 + y = 0.737158584 + 0.5416666665 y = 0.737158584 + 0.5416666665 Combine like terms: 0.737158584 + 0.5416666665 = 1.2788252505 y = 1.2788252505 Simplifying y = 1.2788252505

Subproblem 2

y + -0.5416666665 = -0.737158584 Simplifying y + -0.5416666665 = -0.737158584 Reorder the terms: -0.5416666665 + y = -0.737158584 Solving -0.5416666665 + y = -0.737158584 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.5416666665' to each side of the equation. -0.5416666665 + 0.5416666665 + y = -0.737158584 + 0.5416666665 Combine like terms: -0.5416666665 + 0.5416666665 = 0.0000000000 0.0000000000 + y = -0.737158584 + 0.5416666665 y = -0.737158584 + 0.5416666665 Combine like terms: -0.737158584 + 0.5416666665 = -0.1954919175 y = -0.1954919175 Simplifying y = -0.1954919175

Solution

The solution to the problem is based on the solutions from the subproblems. y = {1.2788252505, -0.1954919175}

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