What is the common difference d of the sequence?

−15, −4, 7, 18, 29, ...−15, −4, 7, 18, 29, ...

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d= ?

2 answers

What is the answer for d?
- 4 - ( - 15 ) = - 4 + 15 = 11

7 - ( - 4 ) = 7 + 4 = 11

18 - 7 = 11

29 - 18 = 11

d = 11