Question

7,3,-1,-5,_,_(complete the following)
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Answer 1

Answer:

-9,-13 actually you have to subtract 4 from each number.

Answer 2

Answer:

7-4 = 3

3-4 = -1

-1 -4 = -5

then

-5 - 4 = -9

-9 - 4 = -13