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7d-13 equals 3d plus 7

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โˆ™ 2009-12-11 02:35:44

Best Answer

1. 7d-13=3d+7
2. 7d-20=3d
3. -20=-4d
4. d=5
5. Check your answer:
7*5-13=22, 3*5+7=22

D equals 5

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โˆ™ 2009-12-11 02:35:44
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