Move only 1 stick to make the equation correct | Matchstick puzzle 9+9=8

This last puzzle completely stumped me, but maybe you’ve already figured it out. Please share your knowledge in the comments below!

You will see answers to these puzzles:-

1) Matchstick puzzle 4-4=7
2) Matchstick puzzle 1+0=7
3) Matchstick puzzle 6-3=8
4) Matchstick puzzle 4-5=6
5) Matchstick puzzle 3-2=6
6) Matchstick puzzle 9+7=4
7) Matchstick puzzle 1-2=9
8) Matchstick puzzle 9+9=8
9) Matchstick puzzle 8-7=2