SOLUTION: I'm find it hard to rearrange the formula, are you able to help me please. You should use algebra in all parts of this question, showing your working clearly. abc ----- =

Question 875246: I'm find it hard to rearrange the formula, are you able to help me please.
You should use algebra in all parts of this question, showing your working
clearly.
abc
----- = c^2 + a(b + 2)
3
to make b the subject (assuming that ac − 3a = 0 )
I might not of typed it out correct on the browser so here is a picture of the question
http://gyazo.com/101e4bb81f099c42a66288c3b5bfb6ed
Be much help thanks.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
abc
----- = c^2 + a(b + 2)
3
================
Use
abc/3 = c^2 + a(b + 2)
---
abc = 3c^2 + 3ab + 6a
abc - 3ab = 3c^2 + 6a
b*(ac - 3a) = 3c^2 + 6a
b = (3c^2 + 6a)/(ac - 3a)

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