Asked by Jillian
                Solve by substitution:
x+y=9
y=2x
            
        x+y=9
y=2x
Answers
                    Answered by
            Dj
            
    x+y=9  2x=4 because 2x2=4
y=2x
  
x+2x=9
x+4=9
-4 -4
x=5
x+y=9
chick answer by 5+4=9
    
y=2x
x+2x=9
x+4=9
-4 -4
x=5
x+y=9
chick answer by 5+4=9
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