ln(x)=ln(15-x)-ln(x+1)

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Solution for ln(x)=ln(15-x)-ln(x+1) equation:


Simplifying
ln(x) = ln(15 + -1x) + -1ln(x + 1)

Multiply ln * x
lnx = ln(15 + -1x) + -1ln(x + 1)
lnx = (15 * ln + -1x * ln) + -1ln(x + 1)
lnx = (15ln + -1lnx) + -1ln(x + 1)

Reorder the terms:
lnx = 15ln + -1lnx + -1ln(1 + x)
lnx = 15ln + -1lnx + (1 * -1ln + x * -1ln)
lnx = 15ln + -1lnx + (-1ln + -1lnx)

Reorder the terms:
lnx = 15ln + -1ln + -1lnx + -1lnx

Combine like terms: 15ln + -1ln = 14ln
lnx = 14ln + -1lnx + -1lnx

Combine like terms: -1lnx + -1lnx = -2lnx
lnx = 14ln + -2lnx

Solving
lnx = 14ln + -2lnx

Solving for variable 'l'.

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

Add '-14ln' to each side of the equation.
-14ln + lnx = 14ln + -14ln + -2lnx

Combine like terms: 14ln + -14ln = 0
-14ln + lnx = 0 + -2lnx
-14ln + lnx = -2lnx

Add '2lnx' to each side of the equation.
-14ln + lnx + 2lnx = -2lnx + 2lnx

Combine like terms: lnx + 2lnx = 3lnx
-14ln + 3lnx = -2lnx + 2lnx

Combine like terms: -2lnx + 2lnx = 0
-14ln + 3lnx = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-14 + 3x) = 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 '(-14 + 3x)' equal to zero and attempt to solve: Simplifying -14 + 3x = 0 Solving -14 + 3x = 0 Move all terms containing l to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + 3x = 0 + 14 Combine like terms: -14 + 14 = 0 0 + 3x = 0 + 14 3x = 0 + 14 Combine like terms: 0 + 14 = 14 3x = 14 Add '-3x' to each side of the equation. 3x + -3x = 14 + -3x Combine like terms: 3x + -3x = 0 0 = 14 + -3x Simplifying 0 = 14 + -3x 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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