移项后用【减法 - 】, 2x + 11 = 131, 5 + 3y = 20, 40 = 4a + 8, m + 17 = 56, 9 + k = 73, 6x + 24 = 90, 125 = 8y + 5, 14 + 7a = 63, 3m + 99 = 150, 200 = 12k + 44, 移项后用【加法 + 】, 4x - 13 = 29, 7m - 5 = 16, 15 = 2k - 7, y - 18 = 42, 9a - 6 = 48, 84 = 5x - 11, 3k - 27 = 60, m - 9 = 101, 132 = 10y - 8, 6a - 45 = 99.

Linear Equations First Step Sort

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