ln(3x)+ln(9x)=ln(28)

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Solution for ln(3x)+ln(9x)=ln(28) equation:


Simplifying
ln(3x) + ln(9x) = ln(28)

Remove parenthesis around (3x)
ln * 3x + ln(9x) = ln(28)

Reorder the terms for easier multiplication:
3ln * x + ln(9x) = ln(28)

Multiply ln * x
3lnx + ln(9x) = ln(28)

Remove parenthesis around (9x)
3lnx + ln * 9x = ln(28)

Reorder the terms for easier multiplication:
3lnx + 9ln * x = ln(28)

Multiply ln * x
3lnx + 9lnx = ln(28)

Combine like terms: 3lnx + 9lnx = 12lnx
12lnx = ln(28)

Reorder the terms for easier multiplication:
12lnx = 28ln

Solving
12lnx = 28ln

Solving for variable 'l'.

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

Add '-28ln' to each side of the equation.
-28ln + 12lnx = 28ln + -28ln

Combine like terms: 28ln + -28ln = 0
-28ln + 12lnx = 0

Factor out the Greatest Common Factor (GCF), '4ln'.
4ln(-7 + 3x) = 0

Ignore the factor 4.

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 '(-7 + 3x)' equal to zero and attempt to solve: Simplifying -7 + 3x = 0 Solving -7 + 3x = 0 Move all terms containing l to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 3x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 3x = 0 + 7 3x = 0 + 7 Combine like terms: 0 + 7 = 7 3x = 7 Add '-3x' to each side of the equation. 3x + -3x = 7 + -3x Combine like terms: 3x + -3x = 0 0 = 7 + -3x Simplifying 0 = 7 + -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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