solving nonlinear equation system w/ two variables

From: Kryz (kryz_dreamer_at_hotmail.com)
Date: 08/05/04 

Date: Thu, 5 Aug 2004 19:32:56 +0000 (UTC)

I would need help to solve this equation. The teacher's way is kinda
too confusing for me. If anyone willing to solve this one. Let me
know; Thanks! :)

problem;

Solve each system.

y - xy = 10
x - 2y = -7
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