2l*2w+10=42

Solution for 2l*2w+10=42 equation:

Simplifying
2l * 2w + 10 = 42

Reorder the terms for easier multiplication:
2 * 2l * w + 10 = 42

Multiply 2 * 2
4l * w + 10 = 42

Multiply l * w
4lw + 10 = 42

Reorder the terms:
10 + 4lw = 42

Solving
10 + 4lw = 42

Solving for variable 'l'.

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

Add '-10' to each side of the equation.
10 + -10 + 4lw = 42 + -10

Combine like terms: 10 + -10 = 0
0 + 4lw = 42 + -10
4lw = 42 + -10

Combine like terms: 42 + -10 = 32
4lw = 32

Divide each side by '4w'.
l = 8w-1

Simplifying
l = 8w-1