5(1-n)+3n=3n(n-1)-5n

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Solution for 5(1-n)+3n=3n(n-1)-5n equation:


Simplifying
5(1 + -1n) + 3n = 3n(n + -1) + -5n
(1 * 5 + -1n * 5) + 3n = 3n(n + -1) + -5n
(5 + -5n) + 3n = 3n(n + -1) + -5n

Combine like terms: -5n + 3n = -2n
5 + -2n = 3n(n + -1) + -5n

Reorder the terms:
5 + -2n = 3n(-1 + n) + -5n
5 + -2n = (-1 * 3n + n * 3n) + -5n
5 + -2n = (-3n + 3n2) + -5n

Reorder the terms:
5 + -2n = -3n + -5n + 3n2

Combine like terms: -3n + -5n = -8n
5 + -2n = -8n + 3n2

Solving
5 + -2n = -8n + 3n2

Solving for variable 'n'.

Combine like terms: -2n + 8n = 6n
5 + 6n + -3n2 = -8n + 3n2 + 8n + -3n2

Reorder the terms:
5 + 6n + -3n2 = -8n + 8n + 3n2 + -3n2

Combine like terms: -8n + 8n = 0
5 + 6n + -3n2 = 0 + 3n2 + -3n2
5 + 6n + -3n2 = 3n2 + -3n2

Combine like terms: 3n2 + -3n2 = 0
5 + 6n + -3n2 = 0

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

Divide each side by '-3'.
-1.666666667 + -2n + n2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + -2n + 1.666666667 + n2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + -2n + n2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + -2n + n2 = 0 + 1.666666667
-2n + n2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
-2n + n2 = 1.666666667

The n term is -2n.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2n + 1 + n2 = 1.666666667 + 1

Reorder the terms:
1 + -2n + n2 = 1.666666667 + 1

Combine like terms: 1.666666667 + 1 = 2.666666667
1 + -2n + n2 = 2.666666667

Factor a perfect square on the left side:
(n + -1)(n + -1) = 2.666666667

Calculate the square root of the right side: 1.632993162

Break this problem into two subproblems by setting 
(n + -1) equal to 1.632993162 and -1.632993162.

Subproblem 1

n + -1 = 1.632993162 Simplifying n + -1 = 1.632993162 Reorder the terms: -1 + n = 1.632993162 Solving -1 + n = 1.632993162 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + n = 1.632993162 + 1 Combine like terms: -1 + 1 = 0 0 + n = 1.632993162 + 1 n = 1.632993162 + 1 Combine like terms: 1.632993162 + 1 = 2.632993162 n = 2.632993162 Simplifying n = 2.632993162

Subproblem 2

n + -1 = -1.632993162 Simplifying n + -1 = -1.632993162 Reorder the terms: -1 + n = -1.632993162 Solving -1 + n = -1.632993162 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + n = -1.632993162 + 1 Combine like terms: -1 + 1 = 0 0 + n = -1.632993162 + 1 n = -1.632993162 + 1 Combine like terms: -1.632993162 + 1 = -0.632993162 n = -0.632993162 Simplifying n = -0.632993162

Solution

The solution to the problem is based on the solutions from the subproblems. n = {2.632993162, -0.632993162}

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