3y=2y^2-9

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Solution for 3y=2y^2-9 equation:


Simplifying
3y = 2y2 + -9

Reorder the terms:
3y = -9 + 2y2

Solving
3y = -9 + 2y2

Solving for variable 'y'.

Reorder the terms:
9 + 3y + -2y2 = -9 + 2y2 + 9 + -2y2

Reorder the terms:
9 + 3y + -2y2 = -9 + 9 + 2y2 + -2y2

Combine like terms: -9 + 9 = 0
9 + 3y + -2y2 = 0 + 2y2 + -2y2
9 + 3y + -2y2 = 2y2 + -2y2

Combine like terms: 2y2 + -2y2 = 0
9 + 3y + -2y2 = 0

Factor a trinomial.
(3 + -1y)(3 + 2y) = 0

Subproblem 1

Set the factor '(3 + -1y)' equal to zero and attempt to solve: Simplifying 3 + -1y = 0 Solving 3 + -1y = 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 + -1y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1y = 0 + -3 -1y = 0 + -3 Combine like terms: 0 + -3 = -3 -1y = -3 Divide each side by '-1'. y = 3 Simplifying y = 3

Subproblem 2

Set the factor '(3 + 2y)' equal to zero and attempt to solve: Simplifying 3 + 2y = 0 Solving 3 + 2y = 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 + 2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2y = 0 + -3 2y = 0 + -3 Combine like terms: 0 + -3 = -3 2y = -3 Divide each side by '2'. y = -1.5 Simplifying y = -1.5

Solution

y = {3, -1.5}

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