Question

w=B(L1-L2)/6 solve for L2
$w = b\frac{ l1 -l2 }{6}$

Answer 1

Solve for L2:
W = 1/6 B (L1 - L2)
W = 1/6 B (L1 - L2) is equivalent to 1/6 B (L1 - L2) = W:
1/6 B (L1 - L2) = W
Divide both sides by B/6:
L1 - L2 = (6 W)/B
Subtract L1 from both sides:
-L2 = (6 W)/B - L1
Multiply both sides by -1:
Answer: L2 = L1 - (6 W)/B