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**tony123****Member**- Registered: 2007-08-03
- Posts: 189

Find a solution to the system of simultaneous equations

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 90,736

Hi tony123;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,536

hi tony123,

Here's how I'd tackle this.

so put

This quadratic has two solutions

You can substitute this back in (2) and also make (say) x the subject, and hence get an equation in y.

Bob

*Last edited by bob bundy (2012-01-15 00:42:17)*

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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