math i need help please

solve equation
w/9=9
A)1
b)-1
c)-81
d)81

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  1. What number divided by 9 is 9?

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  2. It is d)81. What number can be divided into 9 to get a positive 9, obviously 81. -81 would give you -9.

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  3. w/9 = 9
    Multply both sides by 9
    9*(w/9) = 9*9
    w = 81

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