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minus 21

think of it as 12+9 which equals 21

then just whack a minus sign infront

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Wiki User

12y ago

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More answers

-9 - (-12) = 3

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Wiki User

11y ago
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12 - 9 = 3

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Wiki User

13y ago
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3

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Anonymous

4y ago
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Q: What is minus 12 minus 9?
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