Mathematics, 15.07.2019 14:00 swello1937

Ricardo and kim rowed their canoes from their base camp to a fishing camp. they rowed a distance of x miles upstream on one river, (3x2 − 9) miles downstream on another river, and (2x + 9) miles across a calm lake. which expression is equivalent to the total distance, in miles, ricardo and kim rowed their canoes? i dont understand how to solve this.

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Ricardo and kim rowed their canoes from their base camp to a fishing camp. they rowed a distance of...

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