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7-64.

Maya and her family took a boat tour to see crocodiles while vacationing in Australia. The boat goes miles per hour in still water. The current of the river is miles per hours. The trip downstream took hours less than the return trip against the same current. Find the total distance Maya traveled. Homework Help ✎

Define your variables; represents the distance traveled, represents the rate, and represents the time to travel upstream.
Also remember .

because time traveled upstream and her rate is equivalent to her speed minus the rivers.

because time is one hour less, and rate is equivalent to her speed plus the rivers.

What is true about both distances?

So , because the distance traveled is the same both ways.

Solve for and substitute the value back into one of the original distance equations in steps & .

total miles, because it is miles one way ().