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Mathematics, 08.11.2019 05:31 noname5359

Acar company tested new tires. the test drive was (5x - 1) miles on a flat road, (4x2 - 9) miles uphill, and (9x) miles downhill. what expression would represent the total distance that the car was test?

i'm struggling a lot on being able to answer this, any is appreciated!

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