ln(4x-7)=ln(x+11)

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Solution for ln(4x-7)=ln(x+11) equation:


Simplifying
ln(4x + -7) = ln(x + 11)

Reorder the terms:
ln(-7 + 4x) = ln(x + 11)
(-7 * ln + 4x * ln) = ln(x + 11)
(-7ln + 4lnx) = ln(x + 11)

Reorder the terms:
-7ln + 4lnx = ln(11 + x)
-7ln + 4lnx = (11 * ln + x * ln)
-7ln + 4lnx = (11ln + lnx)

Solving
-7ln + 4lnx = 11ln + lnx

Solving for variable 'l'.

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

Add '-11ln' to each side of the equation.
-7ln + -11ln + 4lnx = 11ln + -11ln + lnx

Combine like terms: -7ln + -11ln = -18ln
-18ln + 4lnx = 11ln + -11ln + lnx

Combine like terms: 11ln + -11ln = 0
-18ln + 4lnx = 0 + lnx
-18ln + 4lnx = lnx

Add '-1lnx' to each side of the equation.
-18ln + 4lnx + -1lnx = lnx + -1lnx

Combine like terms: 4lnx + -1lnx = 3lnx
-18ln + 3lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-18ln + 3lnx = 0

Factor out the Greatest Common Factor (GCF), '3ln'.
3ln(-6 + x) = 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 '(-6 + x)' equal to zero and attempt to solve: Simplifying -6 + x = 0 Solving -6 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + x = 0 + 6 x = 0 + 6 Combine like terms: 0 + 6 = 6 x = 6 Add '-1x' to each side of the equation. x + -1x = 6 + -1x Combine like terms: x + -1x = 0 0 = 6 + -1x Simplifying 0 = 6 + -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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