y^2+9=-6y

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Solution for y^2+9=-6y equation:


Simplifying
y2 + 9 = -6y

Reorder the terms:
9 + y2 = -6y

Solving
9 + y2 = -6y

Solving for variable 'y'.

Reorder the terms:
9 + 6y + y2 = -6y + 6y

Combine like terms: -6y + 6y = 0
9 + 6y + y2 = 0

Factor a trinomial.
(3 + y)(3 + y) = 0

Subproblem 1

Set the factor '(3 + y)' equal to zero and attempt to solve: Simplifying 3 + y = 0 Solving 3 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + y = 0 + -3 y = 0 + -3 Combine like terms: 0 + -3 = -3 y = -3 Simplifying y = -3

Subproblem 2

Set the factor '(3 + y)' equal to zero and attempt to solve: Simplifying 3 + y = 0 Solving 3 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + y = 0 + -3 y = 0 + -3 Combine like terms: 0 + -3 = -3 y = -3 Simplifying y = -3

Solution

y = {-3, -3}

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