ln(x+3)+ln(x+4)-ln(x)=ln(15)

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Solution for ln(x+3)+ln(x+4)-ln(x)=ln(15) equation:


Simplifying
ln(x + 3) + ln(x + 4) + -1ln(x) = ln(15)

Reorder the terms:
ln(3 + x) + ln(x + 4) + -1ln(x) = ln(15)
(3 * ln + x * ln) + ln(x + 4) + -1ln(x) = ln(15)
(3ln + lnx) + ln(x + 4) + -1ln(x) = ln(15)

Reorder the terms:
3ln + lnx + ln(4 + x) + -1ln(x) = ln(15)
3ln + lnx + (4 * ln + x * ln) + -1ln(x) = ln(15)
3ln + lnx + (4ln + lnx) + -1ln(x) = ln(15)

Multiply ln * x
3ln + lnx + 4ln + lnx + -1lnx = ln(15)

Reorder the terms:
3ln + 4ln + lnx + lnx + -1lnx = ln(15)

Combine like terms: 3ln + 4ln = 7ln
7ln + lnx + lnx + -1lnx = ln(15)

Combine like terms: lnx + lnx = 2lnx
7ln + 2lnx + -1lnx = ln(15)

Combine like terms: 2lnx + -1lnx = 1lnx
7ln + 1lnx = ln(15)

Reorder the terms for easier multiplication:
7ln + 1lnx = 15ln

Solving
7ln + 1lnx = 15ln

Solving for variable 'l'.

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

Add '-15ln' to each side of the equation.
7ln + -15ln + 1lnx = 15ln + -15ln

Combine like terms: 7ln + -15ln = -8ln
-8ln + 1lnx = 15ln + -15ln

Combine like terms: 15ln + -15ln = 0
-8ln + 1lnx = 0

Factor out the Greatest Common Factor (GCF), 'ln'.
ln(-8 + 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 '(-8 + x)' equal to zero and attempt to solve: Simplifying -8 + x = 0 Solving -8 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + x = 0 + 8 x = 0 + 8 Combine like terms: 0 + 8 = 8 x = 8 Add '-1x' to each side of the equation. x + -1x = 8 + -1x Combine like terms: x + -1x = 0 0 = 8 + -1x Simplifying 0 = 8 + -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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