Um, is there angles to look at, or an actual problem?
1 + (-5) becomes 1 - 5 because you are adding a negative number.
1 - 5 is -4
3+ x/4=8
................
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I am going to give a few answers:
497,543
504,690
501,991
496,900
steps:
total: 13 ppl
republicans: 4
1st person: 13-4/13 9/13
2nd person: 12-4/12 (because one person was taken out). 8/12