42=2l+2w

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Solution for 42=2l+2w equation:


Simplifying
42 = 2l + 2w

Solving
42 = 2l + 2w

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 = 2l + -2l + 2w

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

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

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

Divide each side by '-2'.
l = 21 + -1w

Simplifying
l = 21 + -1w

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