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$2.00 Linear Equations in Two Variables

  • From Mathematics: Algebra
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  • Due on Feb. 01, 2010
  • Asked on Feb. 01, 2010 at 10:52:22AM
Asked by :
desalter
desalter
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Q:

Solve each system of equations. Use any method. If there is not a unique solution to a system, state a reason.  Show full details of how you obtained your answer.

3 - (2x + 1) = y + 6

x + y + 5 = 1 - x

 

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  • Posted on Feb. 01, 2010 at 11:01:37AM
Posted by :
vb68
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A:
Preview: ... ant of the matrix of the system is NULL. The matrix is   2    1   2    1 and is null because it ...
The full tutorial is about 93 words long .
 
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Solution with explanation
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  • Posted on Feb. 01, 2010 at 11:02:18AM
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sum123ing
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A:
Preview: ... it in the form ax by = c 3 - (2x 1) = y 6 => 3 - 2x - 1 = y 6 => 2 = y 6 2x  => y 2x = 2 - 6 = - 4 first eqn is y 2x = - 4  ...(1)   x ...
The full tutorial is about 179 words long .