7 - 2x + 3 = 17, 5 - 5x - 7, 4 - 4x + 3 =19, 1 - 20 - 7x = 13, 2 - 10x - 14 = 6, 3 - 7x - 5 = 16, 6 - 9x + 3 = 57, 8 - 10 - x = 2, 9 - 30 - 3x = 3,

two step equations

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