Question

x + 3x + 2 ralla al medio 2 igual 1 + x ralla al medio 4

Answer 1

$\frac{x + 3x + 2}{2} = \frac{1 + x}{4} \\ \frac{4x + 2}{2} = \frac{1 + x}{4} \\ 4(4x + 2) = 2(1 + x) \\ 16x + 8 = 2 + 2x \\ 16x - 2x = 2 - 8 \\ 14x = - 6 \\ x = \frac{ - 6}{14} \\ x = \frac{ - 3}{7}$