ln(x+3)-4=ln(x-7)

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Solution for ln(x+3)-4=ln(x-7) equation:


Simplifying
ln(x + 3) + -4 = ln(x + -7)

Reorder the terms:
ln(3 + x) + -4 = ln(x + -7)
(3 * ln + x * ln) + -4 = ln(x + -7)
(3ln + lnx) + -4 = ln(x + -7)

Reorder the terms:
-4 + 3ln + lnx = ln(x + -7)

Reorder the terms:
-4 + 3ln + lnx = ln(-7 + x)
-4 + 3ln + lnx = (-7 * ln + x * ln)
-4 + 3ln + lnx = (-7ln + lnx)

Add '-1lnx' to each side of the equation.
-4 + 3ln + lnx + -1lnx = -7ln + lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-4 + 3ln + 0 = -7ln + lnx + -1lnx
-4 + 3ln = -7ln + lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-4 + 3ln = -7ln + 0
-4 + 3ln = -7ln

Solving
-4 + 3ln = -7ln

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.
-4 + 3ln + 7ln = -7ln + 7ln

Combine like terms: 3ln + 7ln = 10ln
-4 + 10ln = -7ln + 7ln

Combine like terms: -7ln + 7ln = 0
-4 + 10ln = 0

Add '4' to each side of the equation.
-4 + 4 + 10ln = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 10ln = 0 + 4
10ln = 0 + 4

Combine like terms: 0 + 4 = 4
10ln = 4

Divide each side by '10n'.
l = 0.4n-1

Simplifying
l = 0.4n-1

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