 but "guess and check" seems to work. I tried 4 for x, but that proved false. 3 for x made sense. You get 
 so -9 +6 +4 = 1 is true.  So (3,1)
 as 
set each equal to 0 and get
 8= 1+4+3 True 
Help me please please
...
Answers: 3
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