Question

помогите пожалуйста, очень срочно.​

Answer 1

Ответ:

1)

$\frac{x}{3} - \frac{x}{4} = \frac{1}{6} \\ \frac{4x}{12} - \frac{3x}{12} = \frac{2}{12} \\ \frac{x}{12} = \frac{2}{12} \\ x = 2$

2)

$\frac{x}{4} = \frac{x - 1}{6} \\ \frac{3x}{12} = \frac{2( x - 1)}{12} \\ \frac{3x}{12} = \frac{2x - 2}{12} \\ 3x = 2x - 2 \\ 3x - 2x = - 2 \\ x = - 2$

3)

$\frac{x + 6}{2} = \frac{4 + x}{3} \\ \frac{3(x + 6)}{6} = \frac{2(4 + x)}{6} \\ \frac{3x + 18}{6} = \frac{8 + 2x}{6} \\ 3x + 18 = 8 + 2x \\ 3x - 2x = 8 - 18 \\ x= - 10$

4)

$\frac{3 + x}{8} = \frac{x}{5} \\ \frac{5(3 + x)}{40} = \frac{8x}{40} \\ 15 + 5x = 8x \\ 15 = 8x - 5x \\ 15 = 3x \\ x = 5$

5)

$\frac{x + 2}{6} = \frac{1 + x}{8} \\ \frac{8(x + 2)}{48} = \frac{6(1 + x)}{48} \\ 8x + 16 = 6 + 6x \\ 8x - 6x = 6 - 16 \\ 2x = - 10 \\ x = - 5$

6)

$\frac{2x - 3}{5} = \frac{x - 2}{3} \\ \frac{3(2x - 3)}{15} = \frac{5(x - 2)}{15} \\ 6x - 9 = 5x - 10 \\ 6x - 5x = - 10 + 9 \\ x = - 1$