ln(7-3x)=ln(2x+8)

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Solution for ln(7-3x)=ln(2x+8) equation:


Simplifying
ln(7 + -3x) = ln(2x + 8)
(7 * ln + -3x * ln) = ln(2x + 8)
(7ln + -3lnx) = ln(2x + 8)

Reorder the terms:
7ln + -3lnx = ln(8 + 2x)
7ln + -3lnx = (8 * ln + 2x * ln)
7ln + -3lnx = (8ln + 2lnx)

Solving
7ln + -3lnx = 8ln + 2lnx

Solving for variable 'l'.

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

Add '-8ln' to each side of the equation.
7ln + -8ln + -3lnx = 8ln + -8ln + 2lnx

Combine like terms: 7ln + -8ln = -1ln
-1ln + -3lnx = 8ln + -8ln + 2lnx

Combine like terms: 8ln + -8ln = 0
-1ln + -3lnx = 0 + 2lnx
-1ln + -3lnx = 2lnx

Add '-2lnx' to each side of the equation.
-1ln + -3lnx + -2lnx = 2lnx + -2lnx

Combine like terms: -3lnx + -2lnx = -5lnx
-1ln + -5lnx = 2lnx + -2lnx

Combine like terms: 2lnx + -2lnx = 0
-1ln + -5lnx = 0

Factor out the Greatest Common Factor (GCF), '-1ln'.
-1ln(1 + 5x) = 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 '(1 + 5x)' equal to zero and attempt to solve: Simplifying 1 + 5x = 0 Solving 1 + 5x = 0 Move all terms containing l to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x = 0 + -1 5x = 0 + -1 Combine like terms: 0 + -1 = -1 5x = -1 Add '-5x' to each side of the equation. 5x + -5x = -1 + -5x Combine like terms: 5x + -5x = 0 0 = -1 + -5x Simplifying 0 = -1 + -5x 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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