ln(x+4)-lnx=ln(x-1)

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Solution for ln(x+4)-lnx=ln(x-1) equation:


Simplifying
ln(x + 4) + -1lnx = ln(x + -1)

Reorder the terms:
ln(4 + x) + -1lnx = ln(x + -1)
(4 * ln + x * ln) + -1lnx = ln(x + -1)
(4ln + lnx) + -1lnx = ln(x + -1)

Combine like terms: lnx + -1lnx = 0
4ln + 0 = ln(x + -1)
4ln = ln(x + -1)

Reorder the terms:
4ln = ln(-1 + x)
4ln = (-1 * ln + x * ln)
4ln = (-1ln + lnx)

Solving
4ln = -1ln + lnx

Solving for variable 'l'.

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

Add 'ln' to each side of the equation.
4ln + ln = -1ln + ln + lnx

Combine like terms: 4ln + ln = 5ln
5ln = -1ln + ln + lnx

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

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

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

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(5 + -1x) = 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 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Add 'x' to each side of the equation. -1x + x = -5 + x Combine like terms: -1x + x = 0 0 = -5 + x Simplifying 0 = -5 + x 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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