simplify the following algebraic expressions:
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[tex] k) = \\ \frac{2x + 3}{7} + \frac{x - 4}{7} \\ = \frac{2x + 3 + x - 4}{7} \\ = \frac{3x - 1}{7} \\ \\ m) \: a - \frac{ab}{b - a} \\ = \frac{(b - a)a - ab}{b - a} \\ = \frac{ab - {a}^{2} - ab }{b - a} \\ = \frac{ { - a}^{2} }{b - a} [/tex]
Answer: X=8/3
doing with the help of Lcm