Which method will NOT solve this equation completely?

-8 + 3y = 19

CLEAR CHECK

Add 8 to both sides, then divide both sides by 3.

Divide both sides by 3, then add 8/3
to both sides.

Add 8 to both sides, then multiply both sides by 1/3
.

Subtract 8 from both sides, then divide both sides by 1/3
.

The method "Add 8 to both sides, then multiply both sides by 1/3" will NOT solve this equation completely.