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

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Solution for (1+y)(3y+7)=0 equation:


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

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

Multiply (1 + y) * (7 + 3y)
(1(7 + 3y) + y(7 + 3y)) = 0
((7 * 1 + 3y * 1) + y(7 + 3y)) = 0
((7 + 3y) + y(7 + 3y)) = 0
(7 + 3y + (7 * y + 3y * y)) = 0
(7 + 3y + (7y + 3y2)) = 0

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

Solving
7 + 10y + 3y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(7 + 3y)(1 + y) = 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 '(1 + y)' equal to zero and attempt to solve: Simplifying 1 + y = 0 Solving 1 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + y = 0 + -1 y = 0 + -1 Combine like terms: 0 + -1 = -1 y = -1 Simplifying y = -1

Solution

y = {-2.333333333, -1}

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