On 18 Peb, 00:19, "Brian M. Scott" <b.sc...@[EMAIL PROTECTED]
> wrote:
> On Sun, 17 Feb 2008 05:17:39 -0800 (PST), kukuuk
> <sple_...@[EMAIL PROTECTED]
> wrote in
> <news:0d31605f-d600-4de1-b7ba-807d8a1bfa57@[EMAIL PROTECTED]
>
> in alt.algebra.help:
>
> > pls po ano po solution po nito?
> > 1: solve for g r=3Dgs/g + s tapos dapat ang sagot niya ay
> > g =3D rs/s - r
>
> The language appears to be Tagalog, which I don't read, but
> <dapat> is 'must, ought', <ang sagot> is 'the solution',
> <ay> is the copula ('to be'), and <tapos> might be 'correct'
> (if it's related to <tapat> 'faithful, honest'), so I'm
> guessing that this says roughly 'the correct solution is
> supposed to be g =3D rs/s - r' and that this post is a request
> for explanations of the solutions.
>
> The problem cannot be solved as it is written here; I think
> that some parentheses have been omitted, and that the
> original equation should read r =3D gs/(g + s), with
> g =3D rs/(s - r) as the answer.
>
> Multiply both sides of the equation by g + s:
>
> =A0 =A0r(g + s) =3D gs
>
> Multiply out the left-hand side:
>
> =A0 =A0rg + rs =3D gs
>
> Subtract rg from both sides to get all instances of g on the
> same side of the equation:
>
> =A0 =A0rs =3D gs - rg =3D gs - gr
>
> Factor out g:
>
> =A0 =A0rs =3D g(s - r)
>
> Divide both sides by s - r:
>
> =A0 =A0rs/(s - r) =3D g.
>
> > 2: solve for p t=3Drn + mn/p tapos dapat ang sagot niya ay
> > p =3D mn/t - rn
>
> The answer is missing parentheses: it should be
> p =3D mn/(t - rn).
>
> Subtract rn from both sides of the equation:
>
> =A0 =A0t - rn =3D mn/p
>
> Multiply both sides by p:
>
> =A0 =A0p(t - rn) =3D mn
>
> Divide both sides by t - rn:
>
> =A0 =A0p =3D mn/(t - rn)
>
> > 3. solve fo m ab/c - 1/2m =3D 0 tapos dapat ang sagot niya ay
> > m =3D c/2 ab
>
> The original equation should be ab/c - 1/(2m) =3D 0, and the
> answer should be m =3D c/(2ab).
>
> Start by adding 1/(2m) to both sides of the equation:
>
> =A0 =A0ab/c =3D 1/(2m)
>
> Multiply both sides by m to get it out of the denominator:
>
> =A0 =A0abm/c =3D 1/2
>
> Multiply both sides by c:
>
> =A0 =A0abm =3D c/2
>
> Divide both sides by ab:
>
> =A0 =A0m =3D c/(2ab).
>
> Brian
thank you thank you thank you sir Brian.... you are right my niece
4get to put parentheses and honestly im not really good in math....
thanks again sir...
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