18y^2-5=9y

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Solution for 18y^2-5=9y equation:


Simplifying
18y2 + -5 = 9y

Reorder the terms:
-5 + 18y2 = 9y

Solving
-5 + 18y2 = 9y

Solving for variable 'y'.

Reorder the terms:
-5 + -9y + 18y2 = 9y + -9y

Combine like terms: 9y + -9y = 0
-5 + -9y + 18y2 = 0

Factor a trinomial.
(-1 + -3y)(5 + -6y) = 0

Subproblem 1

Set the factor '(-1 + -3y)' equal to zero and attempt to solve: Simplifying -1 + -3y = 0 Solving -1 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -3y = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3y = 0 + 1 -3y = 0 + 1 Combine like terms: 0 + 1 = 1 -3y = 1 Divide each side by '-3'. y = -0.3333333333 Simplifying y = -0.3333333333

Subproblem 2

Set the factor '(5 + -6y)' equal to zero and attempt to solve: Simplifying 5 + -6y = 0 Solving 5 + -6y = 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 + -6y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -6y = 0 + -5 -6y = 0 + -5 Combine like terms: 0 + -5 = -5 -6y = -5 Divide each side by '-6'. y = 0.8333333333 Simplifying y = 0.8333333333

Solution

y = {-0.3333333333, 0.8333333333}

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