ln(5x-3)=ln(9)-ln(x-3)

Simple and best practice solution for ln(5x-3)=ln(9)-ln(x-3) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

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Solution for ln(5x-3)=ln(9)-ln(x-3) equation:


Simplifying
ln(5x + -3) = ln(9) + -1ln(x + -3)

Reorder the terms:
ln(-3 + 5x) = ln(9) + -1ln(x + -3)
(-3 * ln + 5x * ln) = ln(9) + -1ln(x + -3)
(-3ln + 5lnx) = ln(9) + -1ln(x + -3)

Reorder the terms for easier multiplication:
-3ln + 5lnx = 9ln + -1ln(x + -3)

Reorder the terms:
-3ln + 5lnx = 9ln + -1ln(-3 + x)
-3ln + 5lnx = 9ln + (-3 * -1ln + x * -1ln)
-3ln + 5lnx = 9ln + (3ln + -1lnx)

Combine like terms: 9ln + 3ln = 12ln
-3ln + 5lnx = 12ln + -1lnx

Solving
-3ln + 5lnx = 12ln + -1lnx

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 + 5lnx = 12ln + -12ln + -1lnx

Combine like terms: -3ln + -12ln = -15ln
-15ln + 5lnx = 12ln + -12ln + -1lnx

Combine like terms: 12ln + -12ln = 0
-15ln + 5lnx = 0 + -1lnx
-15ln + 5lnx = -1lnx

Add 'lnx' to each side of the equation.
-15ln + 5lnx + lnx = -1lnx + lnx

Combine like terms: 5lnx + lnx = 6lnx
-15ln + 6lnx = -1lnx + lnx

Combine like terms: -1lnx + lnx = 0
-15ln + 6lnx = 0

Factor out the Greatest Common Factor (GCF), '3ln'.
3ln(-5 + 2x) = 0

Ignore the factor 3.

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 '(-5 + 2x)' equal to zero and attempt to solve: Simplifying -5 + 2x = 0 Solving -5 + 2x = 0 Move all terms containing l to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 2x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 2x = 0 + 5 2x = 0 + 5 Combine like terms: 0 + 5 = 5 2x = 5 Add '-2x' to each side of the equation. 2x + -2x = 5 + -2x Combine like terms: 2x + -2x = 0 0 = 5 + -2x Simplifying 0 = 5 + -2x 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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