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A large negative number. For example: -5-4=-9

You take the negative of the sum of the absolute values:

-x-z = -(|-x|+|-z|) = -(x+z)

As to what actually happens - some really rather abstract things to do with discrete mathematics.

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Q: What happens when you subtract a negative from a negative?
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Related questions

What happens when you subtract a negative from a posotive?

Subtracting a negative is like adding a positive; the result will be positive.


What happens when you subtract a positive number from a negative number?

It's the same as adding a positive number.


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In addition different signs you subtract and give the sign of the bigger number. Ex: 6+(-8)= -14


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What is the answer if you subtract positive twentyseven from negative sixtynine?

If you subtract positive twenty-seven from negative sixty-nine, you would get negative forty-two. You simply subtract the 27 from the 69 but leave the negative sign.


What will you do subtract in six to make it nine?

Subtract negative 3.


What happens when you subtract two positives numbers?

It depends. It can wind up being a positive or negative number. For instance: 8-2=6 but 2-8=-6 (negative 6)


What do you do when subtracting a positive and a negative?

If you subtract a negative from a positive, add both of their absolute values. If you subtract a positive from a negative, add both of their absolute values and multiply by negative one.


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