x + 4 = 9, x = 5, a - 4 = 2, a = 6, 6f + 12 = 48, f = 6, r/4 - 2 = -7, r = -20, 6 - 2x = 18, x = -6, 15a = 45, a = 3, 19 = 7 - 2w, w = -6, 2 = c/5 - 4, c = 30, x - 3 = 7, x = 10, 5x = 40, x = 8, 3x + 1 = 13, x = 4, 3f + 9 = 24, f = 5, v/5 + 3 = -2, v = -25, 1 = 2w + 7, w = -3, 2x - 3 = 13, x = 8, 3x + 8 = 14, x = 2, 3 + x = 9, x = 6, 2x = 32, x = 16, 4r + 20 = 16, r = -1, x/2 + 3 = 5, x = 4, e/5 + 6 = 2, e = -20, 35 = 3t - 7, t = 14, n/3 - 3 = 4, n = 21, 9d = 27, d = 3, 9 - 2a = 17, a = -4, x + 6 = 19, x = 13, 5x - 3 = 27, x = 6, 3r = 36, r = 12, 4 + m/3 = 1, m = -9, x + 7 = 16, x = 9.

Solving linear equations

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