Step-by-step explanation:
If we have 7 vegetables, and we had to put 4 of them in my soup.
Subtract, and don't use does.
so for example
tomato
carrot
broccoli
onion
blah
blah
blah
we got to pick tomato carrot onion and broccoli
do not use blah since they we only need 4. not 3.
