ln(x-4)+ln(3x+8)=2ln(x+5)

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Solution for ln(x-4)+ln(3x+8)=2ln(x+5) equation:


Simplifying
ln(x + -4) + ln(3x + 8) = 2ln(x + 5)

Reorder the terms:
ln(-4 + x) + ln(3x + 8) = 2ln(x + 5)
(-4 * ln + x * ln) + ln(3x + 8) = 2ln(x + 5)
(-4ln + lnx) + ln(3x + 8) = 2ln(x + 5)

Reorder the terms:
-4ln + lnx + ln(8 + 3x) = 2ln(x + 5)
-4ln + lnx + (8 * ln + 3x * ln) = 2ln(x + 5)
-4ln + lnx + (8ln + 3lnx) = 2ln(x + 5)

Reorder the terms:
-4ln + 8ln + lnx + 3lnx = 2ln(x + 5)

Combine like terms: -4ln + 8ln = 4ln
4ln + lnx + 3lnx = 2ln(x + 5)

Combine like terms: lnx + 3lnx = 4lnx
4ln + 4lnx = 2ln(x + 5)

Reorder the terms:
4ln + 4lnx = 2ln(5 + x)
4ln + 4lnx = (5 * 2ln + x * 2ln)
4ln + 4lnx = (10ln + 2lnx)

Solving
4ln + 4lnx = 10ln + 2lnx

Solving for variable 'l'.

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

Add '-10ln' to each side of the equation.
4ln + -10ln + 4lnx = 10ln + -10ln + 2lnx

Combine like terms: 4ln + -10ln = -6ln
-6ln + 4lnx = 10ln + -10ln + 2lnx

Combine like terms: 10ln + -10ln = 0
-6ln + 4lnx = 0 + 2lnx
-6ln + 4lnx = 2lnx

Add '-2lnx' to each side of the equation.
-6ln + 4lnx + -2lnx = 2lnx + -2lnx

Combine like terms: 4lnx + -2lnx = 2lnx
-6ln + 2lnx = 2lnx + -2lnx

Combine like terms: 2lnx + -2lnx = 0
-6ln + 2lnx = 0

Factor out the Greatest Common Factor (GCF), '2ln'.
2ln(-3 + x) = 0

Ignore the factor 2.

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 '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Add '-1x' to each side of the equation. x + -1x = 3 + -1x Combine like terms: x + -1x = 0 0 = 3 + -1x Simplifying 0 = 3 + -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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