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6

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Lorine Boyle

Lvl 10
3y ago
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Eudora Brekke

Lvl 10
3y ago

-12

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Wiki User

14y ago

-3 + 9 +(-3) = -3 + 9 -3 = 3

All numbers are positive unless otherwise stated.

A positive number (+) sign is only shown if there is likely to be confusion.

A negative number (-) sign is invariably shown.

The addition of a negative number is equivalent to the subtraction of a positive number.

So +(-3) is equivalent to -(+3) which is written as - 3

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Wiki User

12y ago

the answer would be 6

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Wiki User

15y ago

3+9=12

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Wiki User

11y ago

-3 plus -9 is -12.

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Wiki User

11y ago

-12

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Q: What is 9 plus -3?
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