xxx2685 xxx2685

04-10-2018
Mathematics

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the sum of six and four times d is the same as d minus nine

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MollieToliver MollieToliver

04-10-2018

According to question

6 + 4 d = d - 9

4d - d = -9 - 6

3d = - 15

d = -15/3

d = -5

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