3y^2=75-40y

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Solution for 3y^2=75-40y equation:


Simplifying
3y2 = 75 + -40y

Solving
3y2 = 75 + -40y

Solving for variable 'y'.

Reorder the terms:
-75 + 40y + 3y2 = 75 + -40y + -75 + 40y

Reorder the terms:
-75 + 40y + 3y2 = 75 + -75 + -40y + 40y

Combine like terms: 75 + -75 = 0
-75 + 40y + 3y2 = 0 + -40y + 40y
-75 + 40y + 3y2 = -40y + 40y

Combine like terms: -40y + 40y = 0
-75 + 40y + 3y2 = 0

Factor a trinomial.
(-15 + -1y)(5 + -3y) = 0

Subproblem 1

Set the factor '(-15 + -1y)' equal to zero and attempt to solve: Simplifying -15 + -1y = 0 Solving -15 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1y = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1y = 0 + 15 -1y = 0 + 15 Combine like terms: 0 + 15 = 15 -1y = 15 Divide each side by '-1'. y = -15 Simplifying y = -15

Subproblem 2

Set the factor '(5 + -3y)' equal to zero and attempt to solve: Simplifying 5 + -3y = 0 Solving 5 + -3y = 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 + -3y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3y = 0 + -5 -3y = 0 + -5 Combine like terms: 0 + -5 = -5 -3y = -5 Divide each side by '-3'. y = 1.666666667 Simplifying y = 1.666666667

Solution

y = {-15, 1.666666667}

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