florianjohn2011
when we are adding, our number line goes right. subtracting keep us our number in number line go left. so when we subtract negative to negative. the answer is negative. example: (-6) - (-6) = (-12), its just the same as 6 + 6 = 12 but with negative sign. adding negative to positive or vice versa is negative or positive, it depends on the value of negative and positive numbers.
florianjohn2011
sometimes adding both negatives give negative
florianjohn2011
(-9) + (-9) = (-18) because repeated addition is multiplication. any negative number multiply to a positive or vice versa will give you a negative number
Answers & Comments
Answer:
Step-by-step:
adding negative to negative is the same as subtracting negative to positive, adding negative to positive is te same as subtrcting negative to negative
i hope that helps