SOLUTION: F1 + c1Q = f2 + c2Q Solve for Q I keep getting either 2Q or a Q-Q ... can you help

Algebra ->  Expressions-with-variables -> SOLUTION: F1 + c1Q = f2 + c2Q Solve for Q I keep getting either 2Q or a Q-Q ... can you help       Log On


   

Question 68436: F1 + c1Q = f2 + c2Q
Solve for Q
I keep getting either 2Q or a Q-Q ... can you help
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
F1 + c1Q = F2 + c2Q
Solve for Q
:
Subtract c2Q from both sides:
F1 + c1Q - c2Q = F2
:
Subtract F1 from both sides:
c1Q - c2Q = F2 - F1
:
Factor out Q
Q(c1 - c2) = F2 - F1
:
Divide both sides by (c1-c2)
Q = %28%28F2-F1%29%29%2F%28%28c1-c2%29%29