Question

Alaska,Hawaii,Washington have active volcanoes. Alaska has 43,Hawaii has 5,and Washington has v. If hey have 52 active volcanoes in all, how many volcanoes does Washington have?

Answer 1

Simple. Add the number of volcanoes from Alaska and Hawaii.
43+5=48
Then subtract that number from the total volcanoes.
52-48=4
Washington has 4 volcanoes