(7+y)(5y+3)=0

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Solution for (7+y)(5y+3)=0 equation:


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

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

Multiply (7 + y) * (3 + 5y)
(7(3 + 5y) + y(3 + 5y)) = 0
((3 * 7 + 5y * 7) + y(3 + 5y)) = 0
((21 + 35y) + y(3 + 5y)) = 0
(21 + 35y + (3 * y + 5y * y)) = 0
(21 + 35y + (3y + 5y2)) = 0

Combine like terms: 35y + 3y = 38y
(21 + 38y + 5y2) = 0

Solving
21 + 38y + 5y2 = 0

Solving for variable 'y'.

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

Subproblem 1

Set the factor '(7 + y)' equal to zero and attempt to solve: Simplifying 7 + y = 0 Solving 7 + y = 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 + y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + y = 0 + -7 y = 0 + -7 Combine like terms: 0 + -7 = -7 y = -7 Simplifying y = -7

Subproblem 2

Set the factor '(3 + 5y)' equal to zero and attempt to solve: Simplifying 3 + 5y = 0 Solving 3 + 5y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 5y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5y = 0 + -3 5y = 0 + -3 Combine like terms: 0 + -3 = -3 5y = -3 Divide each side by '5'. y = -0.6 Simplifying y = -0.6

Solution

y = {-7, -0.6}

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