please help asap I also need it in my own words

Step-by-step explanation:
so to find out how long you would first do 60-30 as this is how many extra minutes they workout. the answer is 30.
then you would divide 30 by 2 that makes 15 as there is 2 people then you would add 15 to 30 and you get 45
45mins on treadmill
freehand=60-45=15
60-30=30
30÷2=15
15+30=45
60-45=15
part A:
freehand=f
treadmill=t
x=y+30
that is what i believe the eqation is