Mathematics, 27.01.2021 22:40, mooncake9090

Find a formula for the nth term in this arithmetic sequence: a1 = 7, a2 = 4, a3 = 1, a4 = -2, ..

an = [? ]n + [ ]

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Find a formula for the nth term in this arithmetic sequence: a1 = 7, a2 = 4, a3 = 1, a4 = -2, ..