Question

am nevoie de rezolvări va rog​

Answer 1

Răspuns:

1.

$a) \: \frac{x}{5} + \frac{2}{5} = \frac{x +2 }{5}$

$b) \: \frac{3x + 2}{7} + \frac{4x + 5}{7} = \frac{7x + 7}{7}$

$c) \: \frac{2 - 3x}{11} + \frac{9 - 8x}{11} = \frac{11 - 11x}{11}$

$d) \: \frac{4x + 6}{3 } + \frac{x + 3}{3} = \frac{5x + 9}{3}$

$e) \: \frac{x - 3}{2} + \frac{3x + 4}{2} + \frac{4x + 7}{2} = \frac{8x + 8}{2}$

$f) \: {}^{2)} \frac{x + 5}{3} + {}^{3)} \frac{2 - 7x}{2} + \frac{2x - 4}{5} = \\ = \frac{2x + 10 + 6 - 21x }{6} + \frac{2x - 4}{5} = \\ = {}^{5)} \frac{ - 19x + 16}{6} + {}^{6)} \frac{2x - 4}{5} = \\ = \frac{ - 83x + 56}{30}$