(2y-7)(5+y)=0

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Solution for (2y-7)(5+y)=0 equation:


Simplifying
(2y + -7)(5 + y) = 0

Reorder the terms:
(-7 + 2y)(5 + y) = 0

Multiply (-7 + 2y) * (5 + y)
(-7(5 + y) + 2y * (5 + y)) = 0
((5 * -7 + y * -7) + 2y * (5 + y)) = 0
((-35 + -7y) + 2y * (5 + y)) = 0
(-35 + -7y + (5 * 2y + y * 2y)) = 0
(-35 + -7y + (10y + 2y2)) = 0

Combine like terms: -7y + 10y = 3y
(-35 + 3y + 2y2) = 0

Solving
-35 + 3y + 2y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-5 + -1y)(7 + -2y) = 0

Subproblem 1

Set the factor '(-5 + -1y)' equal to zero and attempt to solve: Simplifying -5 + -1y = 0 Solving -5 + -1y = 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 + -1y = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1y = 0 + 5 -1y = 0 + 5 Combine like terms: 0 + 5 = 5 -1y = 5 Divide each side by '-1'. y = -5 Simplifying y = -5

Subproblem 2

Set the factor '(7 + -2y)' equal to zero and attempt to solve: Simplifying 7 + -2y = 0 Solving 7 + -2y = 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 + -2y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2y = 0 + -7 -2y = 0 + -7 Combine like terms: 0 + -7 = -7 -2y = -7 Divide each side by '-2'. y = 3.5 Simplifying y = 3.5

Solution

y = {-5, 3.5}

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