Question 875246
abc
----- = c^2 + a(b + 2)
3 
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Use
abc/3 = c^2 + a(b + 2)
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abc = 3c^2 + 3ab + 6a
abc - 3ab = 3c^2 + 6a
b*(ac - 3a) = 3c^2 + 6a
b = (3c^2 + 6a)/(ac - 3a)