-42=-4lnx

Solution for -42=-4lnx equation:

Simplifying
-42 = -4lnx

Solving
-42 = -4lnx

Solving for variable 'l'.

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

Add '4lnx' to each side of the equation.
-42 + 4lnx = -4lnx + 4lnx

Combine like terms: -4lnx + 4lnx = 0
-42 + 4lnx = 0

Add '42' to each side of the equation.
-42 + 42 + 4lnx = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 4lnx = 0 + 42
4lnx = 0 + 42

Combine like terms: 0 + 42 = 42
4lnx = 42

Divide each side by '4nx'.
l = 10.5n-1x-1

Simplifying
l = 10.5n-1x-1