If the sequence is "arithmetic", that means that you need to either add or subtract the numbers in the sequence to define the common difference, or 'd'. So, looking at the sequence you have been given, try thinking of the commas as addition or subtraction signs instead--that might make the final answer a little easier to figure out. Good luck!
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the common difference is the difference between any two consecutive numbers in the sequence.
Difference is the answer to a subtraction problem.
So 35-22=13
22-9=13
9-(-4)=13
The common difference is 13.
d=13
and the next in the series is -4-13=-17
If the sequence is "arithmetic", that means that you need to either add or subtract the numbers in the sequence to define the common difference, or 'd'. So, looking at the sequence you have been given, try thinking of the commas as addition or subtraction signs instead--that might make the final answer a little easier to figure out. Good luck!
they are all 13 less than the number before
it takes 13 away each time
no idea how to explain it, but the proceeding number is 13less than the preceding