ln(5x-1)=ln(x+7)

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Solution for ln(5x-1)=ln(x+7) equation:


Simplifying
ln(5x + -1) = ln(x + 7)

Reorder the terms:
ln(-1 + 5x) = ln(x + 7)
(-1 * ln + 5x * ln) = ln(x + 7)
(-1ln + 5lnx) = ln(x + 7)

Reorder the terms:
-1ln + 5lnx = ln(7 + x)
-1ln + 5lnx = (7 * ln + x * ln)
-1ln + 5lnx = (7ln + lnx)

Solving
-1ln + 5lnx = 7ln + lnx

Solving for variable 'l'.

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

Add '-7ln' to each side of the equation.
-1ln + -7ln + 5lnx = 7ln + -7ln + lnx

Combine like terms: -1ln + -7ln = -8ln
-8ln + 5lnx = 7ln + -7ln + lnx

Combine like terms: 7ln + -7ln = 0
-8ln + 5lnx = 0 + lnx
-8ln + 5lnx = lnx

Add '-1lnx' to each side of the equation.
-8ln + 5lnx + -1lnx = lnx + -1lnx

Combine like terms: 5lnx + -1lnx = 4lnx
-8ln + 4lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-8ln + 4lnx = 0

Factor out the Greatest Common Factor (GCF), '4ln'.
4ln(-2 + x) = 0

Ignore the factor 4.

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 '(-2 + x)' equal to zero and attempt to solve: Simplifying -2 + x = 0 Solving -2 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0 + 2 x = 0 + 2 Combine like terms: 0 + 2 = 2 x = 2 Add '-1x' to each side of the equation. x + -1x = 2 + -1x Combine like terms: x + -1x = 0 0 = 2 + -1x Simplifying 0 = 2 + -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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