(3s+1)(s-4)=-5(s-1)

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Solution for (3s+1)(s-4)=-5(s-1) equation:


Simplifying
(3s + 1)(s + -4) = -5(s + -1)

Reorder the terms:
(1 + 3s)(s + -4) = -5(s + -1)

Reorder the terms:
(1 + 3s)(-4 + s) = -5(s + -1)

Multiply (1 + 3s) * (-4 + s)
(1(-4 + s) + 3s * (-4 + s)) = -5(s + -1)
((-4 * 1 + s * 1) + 3s * (-4 + s)) = -5(s + -1)
((-4 + 1s) + 3s * (-4 + s)) = -5(s + -1)
(-4 + 1s + (-4 * 3s + s * 3s)) = -5(s + -1)
(-4 + 1s + (-12s + 3s2)) = -5(s + -1)

Combine like terms: 1s + -12s = -11s
(-4 + -11s + 3s2) = -5(s + -1)

Reorder the terms:
-4 + -11s + 3s2 = -5(-1 + s)
-4 + -11s + 3s2 = (-1 * -5 + s * -5)
-4 + -11s + 3s2 = (5 + -5s)

Solving
-4 + -11s + 3s2 = 5 + -5s

Solving for variable 's'.

Reorder the terms:
-4 + -5 + -11s + 5s + 3s2 = 5 + -5s + -5 + 5s

Combine like terms: -4 + -5 = -9
-9 + -11s + 5s + 3s2 = 5 + -5s + -5 + 5s

Combine like terms: -11s + 5s = -6s
-9 + -6s + 3s2 = 5 + -5s + -5 + 5s

Reorder the terms:
-9 + -6s + 3s2 = 5 + -5 + -5s + 5s

Combine like terms: 5 + -5 = 0
-9 + -6s + 3s2 = 0 + -5s + 5s
-9 + -6s + 3s2 = -5s + 5s

Combine like terms: -5s + 5s = 0
-9 + -6s + 3s2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-3 + -2s + s2) = 0

Factor a trinomial.
3((-1 + -1s)(3 + -1s)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -1s)' equal to zero and attempt to solve: Simplifying 3 + -1s = 0 Solving 3 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1s = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1s = 0 + -3 -1s = 0 + -3 Combine like terms: 0 + -3 = -3 -1s = -3 Divide each side by '-1'. s = 3 Simplifying s = 3

Solution

s = {-1, 3}

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