How to describe sqrt(√) in simultanius equation.

• Subject: How to describe sqrt(√) in simultanius equation.
• From: 近江
• Date: Thu, 24 Sep 2009 16:30:47 +0900

When using Solving Equations and Systems,tell me how to input  ? as a coefficient,please.
For example:
?2x-2*?3y=??
I can not input ?2 or ?3.
  

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