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Re: right hand side

• To: mathgroup at smc.vnet.net
• Subject: [mg93568] Re: [mg93530] right hand side
• From: Bob Hanlon <hanlonr at cox.net>
• Date: Sat, 15 Nov 2008 06:02:24 -0500 (EST)
• Reply-to: hanlonr at cox.net

aa = 2*x + 5*y == 1;

y /. Solve[aa, y][[1]]

(1/5)*(1 - 2*x)

Last[Reduce[aa, y]] // Simplify

(1/5)*(1 - 2*x)

An alternate way to extract the results of Reduce

y /. ToRules[Reduce[aa, y]] // Simplify

(1/5)*(1 - 2*x)


Bob Hanlon

---- magdamoczydlowska at gmail.com wrote: 

=============
Hello Everyone!

I suppose that my question can be very easy. I will translate it on
simple equation,
aa = 2*x + 5*y == 1, I need to plot this equation so i take Reduce
[aa,y], the result is following y == 1/5 - (2 x)/5. Now I would like
to take right side of equation to plot 1/5-(2x)/5. However I do not
know how to do it.

Thank you for help,
Magdalena


--

Bob Hanlon