Solve 0 = b + 3*f + 1 + 1, 4*b + 15 = -5*f for b.
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What is the h'th term of 228, 236, 256, 294, 356, 448, 576, 746?
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What is the f'th term of -4, 3, -8, -43, -108, -209?
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What is the y'th term of 1136, 1119, 1086, 1031, 948, 831?
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What is the g'th term of 105, 101, 93, 81, 65?
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What is the f'th term of 51, 72, 93?
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What is the u'th term of 18, -9, -54, -123, -222, -357, -534?
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