(-4y+5)(-7-3y)=

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Solution for (-4y+5)(-7-3y)= equation:


Simplifying
(-4y + 5)(-7 + -3y) = 0

Reorder the terms:
(5 + -4y)(-7 + -3y) = 0

Multiply (5 + -4y) * (-7 + -3y)
(5(-7 + -3y) + -4y * (-7 + -3y)) = 0
((-7 * 5 + -3y * 5) + -4y * (-7 + -3y)) = 0
((-35 + -15y) + -4y * (-7 + -3y)) = 0
(-35 + -15y + (-7 * -4y + -3y * -4y)) = 0
(-35 + -15y + (28y + 12y2)) = 0

Combine like terms: -15y + 28y = 13y
(-35 + 13y + 12y2) = 0

Solving
-35 + 13y + 12y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-7 + -3y)(5 + -4y) = 0

Subproblem 1

Set the factor '(-7 + -3y)' equal to zero and attempt to solve: Simplifying -7 + -3y = 0 Solving -7 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -3y = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -3y = 0 + 7 -3y = 0 + 7 Combine like terms: 0 + 7 = 7 -3y = 7 Divide each side by '-3'. y = -2.333333333 Simplifying y = -2.333333333

Subproblem 2

Set the factor '(5 + -4y)' equal to zero and attempt to solve: Simplifying 5 + -4y = 0 Solving 5 + -4y = 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 + -4y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4y = 0 + -5 -4y = 0 + -5 Combine like terms: 0 + -5 = -5 -4y = -5 Divide each side by '-4'. y = 1.25 Simplifying y = 1.25

Solution

y = {-2.333333333, 1.25}

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