-2(3y-5)-1y=-3y(1y-4)

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Solution for -2(3y-5)-1y=-3y(1y-4) equation:


Simplifying
-2(3y + -5) + -1y = -3y(1y + -4)

Reorder the terms:
-2(-5 + 3y) + -1y = -3y(1y + -4)
(-5 * -2 + 3y * -2) + -1y = -3y(1y + -4)
(10 + -6y) + -1y = -3y(1y + -4)

Combine like terms: -6y + -1y = -7y
10 + -7y = -3y(1y + -4)

Reorder the terms:
10 + -7y = -3y(-4 + 1y)
10 + -7y = (-4 * -3y + 1y * -3y)
10 + -7y = (12y + -3y2)

Solving
10 + -7y = 12y + -3y2

Solving for variable 'y'.

Combine like terms: -7y + -12y = -19y
10 + -19y + 3y2 = 12y + -3y2 + -12y + 3y2

Reorder the terms:
10 + -19y + 3y2 = 12y + -12y + -3y2 + 3y2

Combine like terms: 12y + -12y = 0
10 + -19y + 3y2 = 0 + -3y2 + 3y2
10 + -19y + 3y2 = -3y2 + 3y2

Combine like terms: -3y2 + 3y2 = 0
10 + -19y + 3y2 = 0

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

Divide each side by '3'.
3.333333333 + -6.333333333y + y2 = 0

Move the constant term to the right:

Add '-3.333333333' to each side of the equation.
3.333333333 + -6.333333333y + -3.333333333 + y2 = 0 + -3.333333333

Reorder the terms:
3.333333333 + -3.333333333 + -6.333333333y + y2 = 0 + -3.333333333

Combine like terms: 3.333333333 + -3.333333333 = 0.000000000
0.000000000 + -6.333333333y + y2 = 0 + -3.333333333
-6.333333333y + y2 = 0 + -3.333333333

Combine like terms: 0 + -3.333333333 = -3.333333333
-6.333333333y + y2 = -3.333333333

The y term is -6.333333333y.  Take half its coefficient (-3.166666667).
Square it (10.02777778) and add it to both sides.

Add '10.02777778' to each side of the equation.
-6.333333333y + 10.02777778 + y2 = -3.333333333 + 10.02777778

Reorder the terms:
10.02777778 + -6.333333333y + y2 = -3.333333333 + 10.02777778

Combine like terms: -3.333333333 + 10.02777778 = 6.694444447
10.02777778 + -6.333333333y + y2 = 6.694444447

Factor a perfect square on the left side:
(y + -3.166666667)(y + -3.166666667) = 6.694444447

Calculate the square root of the right side: 2.58736245

Break this problem into two subproblems by setting 
(y + -3.166666667) equal to 2.58736245 and -2.58736245.

Subproblem 1

y + -3.166666667 = 2.58736245 Simplifying y + -3.166666667 = 2.58736245 Reorder the terms: -3.166666667 + y = 2.58736245 Solving -3.166666667 + y = 2.58736245 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3.166666667' to each side of the equation. -3.166666667 + 3.166666667 + y = 2.58736245 + 3.166666667 Combine like terms: -3.166666667 + 3.166666667 = 0.000000000 0.000000000 + y = 2.58736245 + 3.166666667 y = 2.58736245 + 3.166666667 Combine like terms: 2.58736245 + 3.166666667 = 5.754029117 y = 5.754029117 Simplifying y = 5.754029117

Subproblem 2

y + -3.166666667 = -2.58736245 Simplifying y + -3.166666667 = -2.58736245 Reorder the terms: -3.166666667 + y = -2.58736245 Solving -3.166666667 + y = -2.58736245 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '3.166666667' to each side of the equation. -3.166666667 + 3.166666667 + y = -2.58736245 + 3.166666667 Combine like terms: -3.166666667 + 3.166666667 = 0.000000000 0.000000000 + y = -2.58736245 + 3.166666667 y = -2.58736245 + 3.166666667 Combine like terms: -2.58736245 + 3.166666667 = 0.579304217 y = 0.579304217 Simplifying y = 0.579304217

Solution

The solution to the problem is based on the solutions from the subproblems. y = {5.754029117, 0.579304217}

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