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Mila [183]
3 years ago
14

The ______ states that you can add two or more numbers in any order and get the same sum.

Mathematics
1 answer:
dimulka [17.4K]3 years ago
6 0
Communitive property
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Answer:

{x,y,z} = {-116,28,37}

Step-by-step explanation:

// Solve equation [3] for the variable  z  

 

 [3]    5z = -2x - 2y + 9

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// Plug this in for variable  z  in equation [1]

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  [1]    7x + 27y = -56

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// Plug this in for variable  z  in equation [2]

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  [2]    8x/5 + 33y/5 = -4/5

  [2]    8x + 33y = -4

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 [2]    33y = -8x - 4

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// Plug this in for variable  y  in equation [1]

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// Solve equation [1] for the variable  x  

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  [1]    x = - 116

__________________________________________________________

// By now we know this much :

   x = -116

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   z = -2x/5-2y/5+9/5

__________________________________________________________

// Use the  x  value to solve for  y  

   y = -(8/33)(-116)-4/33 = 28

__________________________________________________________  

// Use the  x  and  y  values to solve for  z  

 z = -(2/5)(-116)-(2/5)(28)+9/5 = 37

╦────────────────────────────╦

│Hope this helped  _____________________│    

│~Derelis ____________________________ │

╨___________________________________╨                  

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Step-by-step explanation:

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