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https://vle.mathswatch.co.uk/images/questions/question1934.png help?

 Jun 11, 2020
 #1
avatar+902 
+2

SO starting with 13 we subtract 5 each time

 

13-5-5-5= -2 = 4th term

 

If you don't understand anything feel free to ask!

 Jun 11, 2020
 #2
avatar+1128 
0

well we start with 13 and since we subtract 5 from each number we have 4-1=3 left and we do 5*3=15 finally we subtract 15 from 13 and do 13-15=-2 and so the answer is -2

 Jun 11, 2020

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