David Gwyn J. answered • 10/29/20
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Highly Experienced Tutor (Oxbridge graduate and former tech CEO)
The equation has 3 unknowns, P, L and W, so, unfortunately, not enough info to "solve" for L. The best we can do is rearrange and make L the subject, which maybe is what is wanted.
P = 2L + 2W
=> P/2 = L + W
=> L = P/2 - W
