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Maria
a) 2(x + 1) - (x - 1) = 0 b) 5(x + 1) - 3(x + 2) = 0 c) 5x - 3 + x = 2x + 9 d) 17x - 7x = x + 18 e) x + x - 4 = 17 - 2x + 1
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