(3y-1)(y+2)=76

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Solution for (3y-1)(y+2)=76 equation:


Simplifying
(3y + -1)(y + 2) = 76

Reorder the terms:
(-1 + 3y)(y + 2) = 76

Reorder the terms:
(-1 + 3y)(2 + y) = 76

Multiply (-1 + 3y) * (2 + y)
(-1(2 + y) + 3y * (2 + y)) = 76
((2 * -1 + y * -1) + 3y * (2 + y)) = 76
((-2 + -1y) + 3y * (2 + y)) = 76
(-2 + -1y + (2 * 3y + y * 3y)) = 76
(-2 + -1y + (6y + 3y2)) = 76

Combine like terms: -1y + 6y = 5y
(-2 + 5y + 3y2) = 76

Solving
-2 + 5y + 3y2 = 76

Solving for variable 'y'.

Reorder the terms:
-2 + -76 + 5y + 3y2 = 76 + -76

Combine like terms: -2 + -76 = -78
-78 + 5y + 3y2 = 76 + -76

Combine like terms: 76 + -76 = 0
-78 + 5y + 3y2 = 0

Factor a trinomial.
(-6 + -1y)(13 + -3y) = 0

Subproblem 1

Set the factor '(-6 + -1y)' equal to zero and attempt to solve: Simplifying -6 + -1y = 0 Solving -6 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1y = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1y = 0 + 6 -1y = 0 + 6 Combine like terms: 0 + 6 = 6 -1y = 6 Divide each side by '-1'. y = -6 Simplifying y = -6

Subproblem 2

Set the factor '(13 + -3y)' equal to zero and attempt to solve: Simplifying 13 + -3y = 0 Solving 13 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -3y = 0 + -13 Combine like terms: 13 + -13 = 0 0 + -3y = 0 + -13 -3y = 0 + -13 Combine like terms: 0 + -13 = -13 -3y = -13 Divide each side by '-3'. y = 4.333333333 Simplifying y = 4.333333333

Solution

y = {-6, 4.333333333}

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