y^2-4y=y-y^2

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Solution for y^2-4y=y-y^2 equation:


Simplifying
y2 + -4y = y + -1y2

Reorder the terms:
-4y + y2 = y + -1y2

Solving
-4y + y2 = y + -1y2

Solving for variable 'y'.

Reorder the terms:
-4y + -1y + y2 + y2 = y + -1y2 + -1y + y2

Combine like terms: -4y + -1y = -5y
-5y + y2 + y2 = y + -1y2 + -1y + y2

Combine like terms: y2 + y2 = 2y2
-5y + 2y2 = y + -1y2 + -1y + y2

Reorder the terms:
-5y + 2y2 = y + -1y + -1y2 + y2

Combine like terms: y + -1y = 0
-5y + 2y2 = 0 + -1y2 + y2
-5y + 2y2 = -1y2 + y2

Combine like terms: -1y2 + y2 = 0
-5y + 2y2 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-5 + 2y) = 0

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(-5 + 2y)' equal to zero and attempt to solve: Simplifying -5 + 2y = 0 Solving -5 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 2y = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 2y = 0 + 5 2y = 0 + 5 Combine like terms: 0 + 5 = 5 2y = 5 Divide each side by '2'. y = 2.5 Simplifying y = 2.5

Solution

y = {0, 2.5}

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