y^2-y=8y

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Solution for y^2-y=8y equation:


Simplifying
y2 + -1y = 8y

Reorder the terms:
-1y + y2 = 8y

Solving
-1y + y2 = 8y

Solving for variable 'y'.

Reorder the terms:
-1y + -8y + y2 = 8y + -8y

Combine like terms: -1y + -8y = -9y
-9y + y2 = 8y + -8y

Combine like terms: 8y + -8y = 0
-9y + y2 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-9 + y) = 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 '(-9 + y)' equal to zero and attempt to solve: Simplifying -9 + y = 0 Solving -9 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + y = 0 + 9 y = 0 + 9 Combine like terms: 0 + 9 = 9 y = 9 Simplifying y = 9

Solution

y = {0, 9}

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