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14 cards from this deck
Sequence where difference between consecutive terms stays the same
Linear sequence
Constant difference between consecutive terms in a sequence
Difference×n+Zero term\text{Difference} \times n + \text{Zero term}Difference×n+Zero term
The constant difference between consecutive terms
The term that would come before the 1st term
The position number of the term you want
Find what you add between consecutive terms
Work backwards from 1st term by subtracting the difference
Sub into formula, solve for nnn; check if nnn is positive whole
The number is in the sequence
The number is not in the sequence
Yes, this is common and correct
Check by substituting n=1n = 1n=1 and n=2n = 2n=2
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