Janelle has 6 bags * 10 blue marbles = <<6*10=60>>60 marbles.
Janelle has a total of 26 green marbles + 60 blue marbles = <<26+60=86>>86 marbles.
Janelle gave away a gift of 6 green + 8 blue marbles = <<6+8=14>>14 marbles.
Janelle has a final amount of 86 marbles - 14 marbles = <<86-14=72>>72 marbles.
#### 72