Question

решите уровнение 3x-5:7+2x-3:14=2x:2
Пожалуйста ​

Answer 1

$3x - \frac{5}{7} + 2x - \frac{3}{14} = \frac{2x}{2} \\ 5x - \frac{10}{14} - \frac{3}{14} = x \\ 4x = \frac{13}{14} \\ x = \frac{13}{14} \div 4 \\ x = \frac{13}{56}$

$\frac{3x - 5}{7} + \frac{2x -3 }{14} = \frac{2x}{2} \\ \frac{2(3x - 5) + 2x - 3}{14} = x \\ \frac{6x - 10 + 2x - 3}{14} = x \\ 14x = 8x - 13 \\ 6x = - 13 \\ x = \frac{ - 13}{6} \\ x = - 2 \frac{1}{6}$