lnx+ln(x-3)=ln(x+12)

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Solution for lnx+ln(x-3)=ln(x+12) equation:


Simplifying
lnx + ln(x + -3) = ln(x + 12)

Reorder the terms:
lnx + ln(-3 + x) = ln(x + 12)
lnx + (-3 * ln + x * ln) = ln(x + 12)
lnx + (-3ln + lnx) = ln(x + 12)

Reorder the terms:
-3ln + lnx + lnx = ln(x + 12)

Combine like terms: lnx + lnx = 2lnx
-3ln + 2lnx = ln(x + 12)

Reorder the terms:
-3ln + 2lnx = ln(12 + x)
-3ln + 2lnx = (12 * ln + x * ln)
-3ln + 2lnx = (12ln + lnx)

Solving
-3ln + 2lnx = 12ln + lnx

Solving for variable 'l'.

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

Add '-12ln' to each side of the equation.
-3ln + -12ln + 2lnx = 12ln + -12ln + lnx

Combine like terms: -3ln + -12ln = -15ln
-15ln + 2lnx = 12ln + -12ln + lnx

Combine like terms: 12ln + -12ln = 0
-15ln + 2lnx = 0 + lnx
-15ln + 2lnx = lnx

Add '-1lnx' to each side of the equation.
-15ln + 2lnx + -1lnx = lnx + -1lnx

Combine like terms: 2lnx + -1lnx = 1lnx
-15ln + 1lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-15ln + 1lnx = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-15 + 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 '(-15 + x)' equal to zero and attempt to solve: Simplifying -15 + x = 0 Solving -15 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + x = 0 + 15 x = 0 + 15 Combine like terms: 0 + 15 = 15 x = 15 Add '-1x' to each side of the equation. x + -1x = 15 + -1x Combine like terms: x + -1x = 0 0 = 15 + -1x Simplifying 0 = 15 + -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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