Solve 9*u = 7*u - o - 6, -4*u = -4*o for u.
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What is the r'th term of 25, 20, 5, -26, -79, -160, -275, -430?
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What is the q'th term of 60, 309, 724, 1305, 2052, 2965?
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What is the a'th term of 120, 130, 140, 150, 160?
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What is the y'th term of 50, 60, 70, 74, 66?
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What is the i'th term of -1538, -1540, -1542?
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What is the z'th term of 3, 10, 19, 30, 43, 58?
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