Tyson scored three points fifteen times, which would be 3 * 15 = <<3*15=45>>45 points.
He also scored two points twelve times, which would give him a score of 2 * 12 = <<2*12=24>>24.
So Tyson scored 75 - 45 - 24 = <<75-45-24=6>>6 points, by one point each.
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