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How do you do the math problem 7d-8 equals -7?

Updated: 8/20/2019
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12y ago

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7d-8=7 / 7d=7+8 / 7d=15 / d=15:7 / d=2,14285.....

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12y ago
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Q: How do you do the math problem 7d-8 equals -7?
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