Solve 4*a - 3*a = -4*t - 8, -2*t + 3*a = 18 for t.
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What is the q'th term of 5070, 5072, 5074, 5076, 5078, 5080?
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What is the d'th term of 25, 56, 107, 178, 269, 380, 511?
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What is the y'th term of -27, -38, -51, -66, -83, -102?
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What is the r'th term of -83, -73, -59, -41, -19?
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What is the l'th term of 66, 67, 70, 75, 82?
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What is the d'th term of -1461, -1442, -1421, -1398, -1373, -1346, -1317?
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