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 January 3rd, 2010, 11:34 AM #1 Newbie   Joined: Jan 2010 Posts: 1 Thanks: 0 solving xy+ax+by=c How would you obtain the solutions to the equation xy+7x+3y=70? The values of x and y should be integers.
 January 3rd, 2010, 01:16 PM #2 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms Re: solving xy+ax+by=c http://www.alpertron.com.ar/METHODS.HTM#SHyperb has step-by-step instructions and http://www.alpertron.com.ar/QUAD.HTM is a solver. There are only two solutions with x and y nonnegative, with six others if you allow negatives.

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# how to solve x y=4 &x 3y=6 with ranging from -2 to 2 graghically

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