40=2(l+w)

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Solution for 40=2(l+w) equation:


Simplifying
40 = 2(l + w)
40 = (l * 2 + w * 2)
40 = (2l + 2w)

Solving
40 = 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.
40 + -2l = 2l + -2l + 2w

Combine like terms: 2l + -2l = 0
40 + -2l = 0 + 2w
40 + -2l = 2w

Add '-40' to each side of the equation.
40 + -40 + -2l = -40 + 2w

Combine like terms: 40 + -40 = 0
0 + -2l = -40 + 2w
-2l = -40 + 2w

Divide each side by '-2'.
l = 20 + -1w

Simplifying
l = 20 + -1w

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