enrique and levi together have 386 trading cards. if enruque has 221 tradibg cards, how many does lwvi have?
enrique+levi=386
enrique=221
subsitute
221+levi=386
subtract 221 frm botoh sides
levi=386-221
levi=165
levi has 165 cards
If they have 386 cards altogether, subtract one of the numbers that you know make up the sum. In this case, it'd be 221. So, you'd do 386-221. Which would be 165.