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Simultaneous Settlement (Posted on 2012-01-27)

Without solving for x and y, determine all possible values of x*y in this simultaneous equation:

x+x*y = 8 and, y+x*y = 9

Note: Solving for 1/x, 1/y, -x or -y is similarly NOT allowed.

See The Solution Submitted by K Sengupta

Rating: 5.0000 (2 votes)

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re: No Subject

| Comment 4 of 8 |

(In reply to No Subject by Dustin)

An equation like y=x+1 does not solve for x or y. Only an equation like x=1 or y=-10 does.

Posted by Math Man on 2012-01-27 20:07:55

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