42=2l+2(6)

Solution for 42=2l+2(6) equation:

Simplifying
42 = 2l + 2(6)

Multiply 2 * 6
42 = 2l + 12

Reorder the terms:
42 = 12 + 2l

Solving
42 = 12 + 2l

Solving for variable 'l'.

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

Add '-2l' to each side of the equation.
42 + -2l = 12 + 2l + -2l

Combine like terms: 2l + -2l = 0
42 + -2l = 12 + 0
42 + -2l = 12

Add '-42' to each side of the equation.
42 + -42 + -2l = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -2l = 12 + -42
-2l = 12 + -42

Combine like terms: 12 + -42 = -30
-2l = -30

Divide each side by '-2'.
l = 15

Simplifying
l = 15