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

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


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

Multiply ln * x
lnx + ln(x + -3) = ln(3x)

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

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

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

Remove parenthesis around (3x)
-3ln + 2lnx = ln * 3x

Reorder the terms for easier multiplication:
-3ln + 2lnx = 3ln * x

Multiply ln * x
-3ln + 2lnx = 3lnx

Solving
-3ln + 2lnx = 3lnx

Solving for variable 'l'.

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

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

Combine like terms: 2lnx + -3lnx = -1lnx
-3ln + -1lnx = 3lnx + -3lnx

Combine like terms: 3lnx + -3lnx = 0
-3ln + -1lnx = 0

Factor out the Greatest Common Factor (GCF), '-1ln'.
-1ln(3 + x) = 0

Ignore the factor -1.

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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