How many integer solutions are there to the equation x+y+z=7x+y+z=7 for which x,x, y,y, and zz are all positive?                   2. x,x, y,y, and zz are all non-negative?                  3.x,x, y,y, and zz are all greater than or equal to −3.−3.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Author:HOUGHTON MIFFLIN HARCOURT
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Chapter1: Solving Linear Equations
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How many integer solutions are there to the equation x+y+z=7x+y+z=7 for which

    1. x,x, y,y, and zz are all positive?
       
 

              2. x,x, y,y, and zz are all non-negative?

 
 

             3.x,x, y,y, and zz are all greater than or equal to −3.−3.

 
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