5ln(x+4)-7=8

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Solution for 5ln(x+4)-7=8 equation:


Simplifying
5ln(x + 4) + -7 = 8

Reorder the terms:
5ln(4 + x) + -7 = 8
(4 * 5ln + x * 5ln) + -7 = 8
(20ln + 5lnx) + -7 = 8

Reorder the terms:
-7 + 20ln + 5lnx = 8

Solving
-7 + 20ln + 5lnx = 8

Solving for variable 'l'.

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

Add '7' to each side of the equation.
-7 + 20ln + 7 + 5lnx = 8 + 7

Reorder the terms:
-7 + 7 + 20ln + 5lnx = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 20ln + 5lnx = 8 + 7
20ln + 5lnx = 8 + 7

Combine like terms: 8 + 7 = 15
20ln + 5lnx = 15

Reorder the terms:
-15 + 20ln + 5lnx = 15 + -15

Combine like terms: 15 + -15 = 0
-15 + 20ln + 5lnx = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-3 + 4ln + lnx) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-3 + 4ln + lnx)' equal to zero and attempt to solve: Simplifying -3 + 4ln + lnx = 0 Solving -3 + 4ln + lnx = 0 Move all terms containing l to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 4ln + 3 + lnx = 0 + 3 Reorder the terms: -3 + 3 + 4ln + lnx = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 4ln + lnx = 0 + 3 4ln + lnx = 0 + 3 Combine like terms: 0 + 3 = 3 4ln + lnx = 3 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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