ln(x+1)+ln(x-1)=ln(x+5)

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Solution for ln(x+1)+ln(x-1)=ln(x+5) equation:


Simplifying
ln(x + 1) + ln(x + -1) = ln(x + 5)

Reorder the terms:
ln(1 + x) + ln(x + -1) = ln(x + 5)
(1 * ln + x * ln) + ln(x + -1) = ln(x + 5)
(1ln + lnx) + ln(x + -1) = ln(x + 5)

Reorder the terms:
1ln + lnx + ln(-1 + x) = ln(x + 5)
1ln + lnx + (-1 * ln + x * ln) = ln(x + 5)
1ln + lnx + (-1ln + lnx) = ln(x + 5)

Reorder the terms:
1ln + -1ln + lnx + lnx = ln(x + 5)

Combine like terms: 1ln + -1ln = 0
0 + lnx + lnx = ln(x + 5)
lnx + lnx = ln(x + 5)

Combine like terms: lnx + lnx = 2lnx
2lnx = ln(x + 5)

Reorder the terms:
2lnx = ln(5 + x)
2lnx = (5 * ln + x * ln)
2lnx = (5ln + lnx)

Solving
2lnx = 5ln + lnx

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '-5ln' to each side of the equation.
-5ln + 2lnx = 5ln + -5ln + lnx

Combine like terms: 5ln + -5ln = 0
-5ln + 2lnx = 0 + lnx
-5ln + 2lnx = lnx

Add '-1lnx' to each side of the equation.
-5ln + 2lnx + -1lnx = lnx + -1lnx

Combine like terms: 2lnx + -1lnx = 1lnx
-5ln + 1lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-5ln + 1lnx = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-5 + x) = 0

Subproblem 1

Set the factor 'ln' equal to zero and attempt to solve: Simplifying ln = 0 Solving ln = 0 Move all terms containing l to the left, all other terms to the right. Simplifying ln = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Add '-1x' to each side of the equation. x + -1x = 5 + -1x Combine like terms: x + -1x = 0 0 = 5 + -1x Simplifying 0 = 5 + -1x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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