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Topic: Simultaneous Equation
Replies: 4   Last Post: Apr 27, 2012 12:00 AM

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Paul Sperry

Posts: 1,392
Registered: 12/6/04
Re: Simultaneous Equation
Posted: Nov 5, 2006 1:47 AM
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In article <1162707887.555086.323000@f16g2000cwb.googlegroups.com>,
Anthony wrote:

> I'm having some trouble with this simultaneous equation problem. The
> question is:
>
> A rectangle is 4cm longer than it is wide.


So l = w + 4

> If both the length and
> breadth are increased by 1cm, the area would be increased by 18cm^2


So (l + 1)(w + 1) = lw + 18

Plug in w + 4 for l and away you go.

--
Paul Sperry
Columbia, SC (USA)



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