Solve 3*f - 1 = 7*m, 0 = -7*f + 6*f - 2*m + 9 for f.
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What is the v'th term of 3, 9, 11, 3, -21?
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What is the r'th term of 406, 409, 414, 421, 430?
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What is the n'th term of -4, -124, -448, -1078, -2116?
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What is the r'th term of 23, 38, 53, 68, 83?
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What is the w'th term of 47, 127, 245, 401, 595?
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What is the b'th term of 13594, 27187, 40780?
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