FInd expression! PLEASE HELp

Question

A rowing team training on the Hudson River, which has a current of 3 kph, wondered what their speed r would be in still water. A mathematician in the boat suggested that they row two timed kilometers — one going upstream and one going downstream. Write an expression that represents their total time rowing these two kilometers, in terms of r

Answer 1

T=time with the current

t=time against the current

T(r+3)=1

t(r-3)=1

You take it from here!