Expresiones numéricas: 4 + 6(2 - 1), 8 - 5 = 3, 7(2 + 5) = 4(3) + 2, 5 = 10 - 5, 8 x -3 , 6/3 + 9, -15 - 4 x 2, -10 + 5 - 6, Expresiones algebraicas: x - y, c + d = 4e, 9a + 2b = 5c, 6d - f, a + b + c, 4 + w - 2z, y + 3z, 4 - x = 2x, a + b - 5, x + 6,

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