ln(x+19)=ln(7x-8)

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Solution for ln(x+19)=ln(7x-8) equation:


Simplifying
ln(x + 19) = ln(7x + -8)

Reorder the terms:
ln(19 + x) = ln(7x + -8)
(19 * ln + x * ln) = ln(7x + -8)
(19ln + lnx) = ln(7x + -8)

Reorder the terms:
19ln + lnx = ln(-8 + 7x)
19ln + lnx = (-8 * ln + 7x * ln)
19ln + lnx = (-8ln + 7lnx)

Solving
19ln + lnx = -8ln + 7lnx

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.
19ln + 8ln + lnx = -8ln + 8ln + 7lnx

Combine like terms: 19ln + 8ln = 27ln
27ln + lnx = -8ln + 8ln + 7lnx

Combine like terms: -8ln + 8ln = 0
27ln + lnx = 0 + 7lnx
27ln + lnx = 7lnx

Add '-7lnx' to each side of the equation.
27ln + lnx + -7lnx = 7lnx + -7lnx

Combine like terms: lnx + -7lnx = -6lnx
27ln + -6lnx = 7lnx + -7lnx

Combine like terms: 7lnx + -7lnx = 0
27ln + -6lnx = 0

Factor out the Greatest Common Factor (GCF), '3ln'.
3ln(9 + -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 '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing l to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Add '2x' to each side of the equation. -2x + 2x = -9 + 2x Combine like terms: -2x + 2x = 0 0 = -9 + 2x Simplifying 0 = -9 + 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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