The answer is 9. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
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negative 15 plus positive three = negative twelve -15 + +3 = -12
Negative 9 + positive 3 = -6 and negative six - negative 3 is -9.Vanessa Hudgensage 12
First add all the negative numbers. It -4+-3+-8 is -15. Now 3+9=12So we need to as 12 to -15 which is the same as 12-15 or -3.When you add negative numbers you can just add them like positives then place the negative sign in front of you answer. Adding a positive and a negative is like subtracting the negative one from the positive one. That is what I did.
Positive 4 -3 + 7= 4 Negative 3 plus positive 7 equals positive 4.
Positive 3 plus negative 5 minus negative 2 minus positive 4 is equal to -4.