ln(7x-1)+ln(2)=ln(x-7)

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Solution for ln(7x-1)+ln(2)=ln(x-7) equation:


Simplifying
ln(7x + -1) + ln(2) = ln(x + -7)

Reorder the terms:
ln(-1 + 7x) + ln(2) = ln(x + -7)
(-1 * ln + 7x * ln) + ln(2) = ln(x + -7)
(-1ln + 7lnx) + ln(2) = ln(x + -7)

Reorder the terms for easier multiplication:
-1ln + 7lnx + 2ln = ln(x + -7)

Reorder the terms:
-1ln + 2ln + 7lnx = ln(x + -7)

Combine like terms: -1ln + 2ln = 1ln
1ln + 7lnx = ln(x + -7)

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

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

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

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

Add '-1lnx' to each side of the equation.
8ln + 7lnx + -1lnx = lnx + -1lnx

Combine like terms: 7lnx + -1lnx = 6lnx
8ln + 6lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
8ln + 6lnx = 0

Factor out the Greatest Common Factor (GCF), '2ln'.
2ln(4 + 3x) = 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 '(4 + 3x)' equal to zero and attempt to solve: Simplifying 4 + 3x = 0 Solving 4 + 3x = 0 Move all terms containing l to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3x = 0 + -4 3x = 0 + -4 Combine like terms: 0 + -4 = -4 3x = -4 Add '-3x' to each side of the equation. 3x + -3x = -4 + -3x Combine like terms: 3x + -3x = 0 0 = -4 + -3x Simplifying 0 = -4 + -3x 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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