Tim,
Thank you very much for the solution. I am trying to understand your
solution but I am getting lost on the part where you factor out b.
Can you detail for me how you factor out the b in
-b + (d * b)
to get
b * (-1 + d)
Thanks,
Brent
On Apr 12, 11:09 pm, "TR Oltrogge" <troltro...@[EMAIL PROTECTED]
> wrote:
> "unclemuffin" <unclemuf...@[EMAIL PROTECTED]
> wrote in message
>
>
news:3d2903bc-2950-44ca-bd3f-cc061ca67c95@[EMAIL PROTECTED]
>
> > It has been a long time since I made a C in Algebra in high school. I
> > guess I should have paid more attention because I have a real life
> > problem that needs algebra to solve.
>
> > my equation:
>
> > a = (b - (c + (d * b))) / c
>
> > solve for b
>
> > Any help would be appreciated,
>
> > Brent
>
> a = (b - c - (d * b)) / c distribute subtraction over (c
+ (d
> * b))
> a * c = b - c - (d * b) mpy both sides by c
> -b + (d * b) = - (a * c) - c move both terms containing b to
left
> side, others to right side
> b * (-1 + d) = - c * (a + 1) factor out b on left side, factor
out
> c on right side
> b = (- c * (a + 1)) / (-1 + d) divide both sides by (-1 + d)
> b = (c * (a + 1)) / (1 - d) mpy both numer and denom of
right
> side by -1 to look cleaner
>
> Tim
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