Math and Arithmetic

# How do you add a negative by a negative?

###### Wiki User

you make it a positive because negative add negative becomes a positive

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## Related Questions

Adding a negative number to a negative number makes a larger negative. In order to solve this you add the numbers together as a positive then add a negative sign.

if they are both negative, add like they are positive numbers, but just add the negative sign.

You add as normal , pretend as if the signs weren't there,but the answer will be a negative!

None do.But the factors of negative 100 that add up to negative 15 are negative 20 and positive 5.

If you are adding a positive number, then this is the same as normal addition. For instance, 4 add positive 5 is 9. negative 1 add positive 8 is 7. If you are adding a negative number, then this is the same as subtracting that number. For instance 6 add negative 1 is 5. negative 7 add negative 2 is negative 9.

-n+-n=-2n so -1+-1=-2. In simple terms a negative plus a negative eqauls a negative. You can just add the numbers as if they are positive and then add a negative sign to the answer.

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.

When you add a negative number, the one on the right side gets cancelled out. E.g. -3x + - 3x = -3x

positive is to add and negative is to subtract in math

Add the second negative to the first negative, so -1 - -2 = 1

negative eight :) if you times 4x2 you get eight right? So if you add a negative to ONE number you add a negative to the answer. If you were to have both numbers as a negative, your answer would be postitive :) Hope I helped you :)

Please review your question, it is not possible to add a pair of numbers and get to different results.

First, add negative 5 and four. That answer is negative 1. Then add negative six, which is -7.

If both numbers are positive, simply add them as you learned in 4th grade. If both numbers are negative,simply add them but add a minus to the answer. If one is positive and the other negative, ignoring the signs,subtract the smaller from the larger and add the sign of the larger to your answer.

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