Spencer visits different states every summer. This summer, he started with 3 states already and visited and will visits 4 states per day.
Write an equation to model this situation (use d for days and s for states) which would represent the total number of states visit
s is the number of states, so we put a s and an equal sign. Then 3 is the number of days he started with, so we add that, and 4d is 4 states times the number of days.
