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Mathematics, added 2021-11-26 20:32:25
Find a1 and d for an arithmetic sequence with these terms. a3=-8 and a7=32 ...

Mathematics, added 2021-11-26 19:21:16
Find a1 and d for an arithmetic sequence with these terms. a3=-8 and a7=32 ...




Answered by Deleted
To find our answer, we can substitute the values given into the equation and then simplify it. a_n is not given, as it is the value of the nth term. a_1 is given, as it is the first term: -10 n is not given. d is given, as it is the common difference: 4 a_n = -10 + 4(n - 1) a_n = -10 + 4n - 4 a_n = 4n - 14 Our answer is 4n - 14.