8x-10=13x, 2, 12, -4a-4ab+12a, 8a-4ab, 32ab+3b, 8x-3b+x, 9x-3b, 21b-13b, -3+.......=+9, 24, 12, 17, 23, 2m-4= m=9, 45, 12, 14, 20.

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