0.333y^2=y+0.1666

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Solution for 0.333y^2=y+0.1666 equation:


Simplifying
0.333y2 = y + 0.1666

Reorder the terms:
0.333y2 = 0.1666 + y

Solving
0.333y2 = 0.1666 + y

Solving for variable 'y'.

Reorder the terms:
-0.1666 + -1y + 0.333y2 = 0.1666 + y + -0.1666 + -1y

Reorder the terms:
-0.1666 + -1y + 0.333y2 = 0.1666 + -0.1666 + y + -1y

Combine like terms: 0.1666 + -0.1666 = 0.0000
-0.1666 + -1y + 0.333y2 = 0.0000 + y + -1y
-0.1666 + -1y + 0.333y2 = y + -1y

Combine like terms: y + -1y = 0
-0.1666 + -1y + 0.333y2 = 0

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

Divide each side by '0.333'.
-0.5003003003 + -3.003003003y + y2 = 0

Move the constant term to the right:

Add '0.5003003003' to each side of the equation.
-0.5003003003 + -3.003003003y + 0.5003003003 + y2 = 0 + 0.5003003003

Reorder the terms:
-0.5003003003 + 0.5003003003 + -3.003003003y + y2 = 0 + 0.5003003003

Combine like terms: -0.5003003003 + 0.5003003003 = 0.0000000000
0.0000000000 + -3.003003003y + y2 = 0 + 0.5003003003
-3.003003003y + y2 = 0 + 0.5003003003

Combine like terms: 0 + 0.5003003003 = 0.5003003003
-3.003003003y + y2 = 0.5003003003

The y term is -3.003003003y.  Take half its coefficient (-1.501501502).
Square it (2.254506761) and add it to both sides.

Add '2.254506761' to each side of the equation.
-3.003003003y + 2.254506761 + y2 = 0.5003003003 + 2.254506761

Reorder the terms:
2.254506761 + -3.003003003y + y2 = 0.5003003003 + 2.254506761

Combine like terms: 0.5003003003 + 2.254506761 = 2.7548070613
2.254506761 + -3.003003003y + y2 = 2.7548070613

Factor a perfect square on the left side:
(y + -1.501501502)(y + -1.501501502) = 2.7548070613

Calculate the square root of the right side: 1.659761146

Break this problem into two subproblems by setting 
(y + -1.501501502) equal to 1.659761146 and -1.659761146.

Subproblem 1

y + -1.501501502 = 1.659761146 Simplifying y + -1.501501502 = 1.659761146 Reorder the terms: -1.501501502 + y = 1.659761146 Solving -1.501501502 + y = 1.659761146 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.501501502' to each side of the equation. -1.501501502 + 1.501501502 + y = 1.659761146 + 1.501501502 Combine like terms: -1.501501502 + 1.501501502 = 0.000000000 0.000000000 + y = 1.659761146 + 1.501501502 y = 1.659761146 + 1.501501502 Combine like terms: 1.659761146 + 1.501501502 = 3.161262648 y = 3.161262648 Simplifying y = 3.161262648

Subproblem 2

y + -1.501501502 = -1.659761146 Simplifying y + -1.501501502 = -1.659761146 Reorder the terms: -1.501501502 + y = -1.659761146 Solving -1.501501502 + y = -1.659761146 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.501501502' to each side of the equation. -1.501501502 + 1.501501502 + y = -1.659761146 + 1.501501502 Combine like terms: -1.501501502 + 1.501501502 = 0.000000000 0.000000000 + y = -1.659761146 + 1.501501502 y = -1.659761146 + 1.501501502 Combine like terms: -1.659761146 + 1.501501502 = -0.158259644 y = -0.158259644 Simplifying y = -0.158259644

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.161262648, -0.158259644}

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