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3 votes
15-d=6 solve for d help me please

1 Answer

2 votes

Answer:


\: \: \: \: \: \: 15 - d = 6 \\ = > - d = 6 - 15 \\ = > - d = - 9 \\ = > d = 9

Verification :


\: \: \: \: \: \: 15 - d = 6 \\ = > 15 - 9 = 6 \\ = > 6 = 6

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