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Mathematics 15 Online
OpenStudy (anonymous):

3u-18=0

jimthompson5910 (jim_thompson5910):

3u-18=0 3u-18+18=0+18 3u = 18 3u/3 = 18/3 1u = 6 u = 6

jimthompson5910 (jim_thompson5910):

Check: 3u-18 = 0 3*6-18 = 0 18-18 = 0 0 = 0 So the answer is confirmed

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