Answer :
When you use the distributive, you multiply everything in the parentheses by the number outside it.
3(10 - 11y), first we multiply 10 by 3, then we multiply 11y by 3,
3(10 - 11y) --> 30 - 33y
3(10 - 11y), first we multiply 10 by 3, then we multiply 11y by 3,
3(10 - 11y) --> 30 - 33y