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7x + 51x + 14= 58x + 14= 2(29x + 7)
-7x + 5 = -9 -7x = -14 7x = 14 x = 2
7x+5-14 = 28 7x = 28+14-5 7x = 37 x = 37/7 = 5.'285714' recurring
(7x + 7)(x + 2) = 7x2 + 21x + 14
7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4