72=w+(l-4)

Solution for 72=w+(l-4) equation:

Simplifying
72 = w + (l + -4)

Reorder the terms:
72 = w + (-4 + l)

Remove parenthesis around (-4 + l)
72 = w + -4 + l

Reorder the terms:
72 = -4 + l + w

Solving
72 = -4 + l + w

Solving for variable 'l'.

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

Add '-1l' to each side of the equation.
72 + -1l = -4 + l + -1l + w

Combine like terms: l + -1l = 0
72 + -1l = -4 + 0 + w
72 + -1l = -4 + w

Add '-72' to each side of the equation.
72 + -72 + -1l = -4 + -72 + w

Combine like terms: 72 + -72 = 0
0 + -1l = -4 + -72 + w
-1l = -4 + -72 + w

Combine like terms: -4 + -72 = -76
-1l = -76 + w

Divide each side by '-1'.
l = 76 + -1w

Simplifying
l = 76 + -1w