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The Answer:The multiplicative inverse is the reciprocal of the said number, and (-7)-1 = -1/7. Now, adding 9 to -1/7 is basically doing this:

(-1/7 + 9) commutes to = (9 - 1/7) = 8 6/7 or 62/7.

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Q: What is the multiplicative inverse of -7 plus 9?
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