Question

Each service starts on a different date because the services depend on each other.
Starting with Phase 2, enter a formula without using a function that adds 4 days to the G-131 service date. Next, use a similar formula that subtracts 3 days from the G-131 service date. For the next date, use a similar formula that adds 2 days to the F-125 service date. Finally, use a similar formula that adds 2 days to the G-131 service date.
I'll provide the image that goes with this in the comments. Please. I really am confused on how to do this. Any pointers are deeply appreciated