Question

плииз скорая помощь,​

Answer 1

Ответ:

$1) - x = \frac{1}{2} + \frac{1}{3} + \frac{1}{6} + 7$

$- x = 8$

$x = - 8$

$2) |x - 9| = - 5.9 + 3 - 4.1 + 7$

$|x - 9| = 0$

$x - 9 = 0$

$x = 9$

$3) |x + 1| = \frac{13}{5} - 1 \frac{3}{4} + \frac{17}{5} - 0.25$

$|x + 1| = \frac{13}{5} - \frac{7}{4} + \frac{17}{5} - \frac{1}{4}$

$|x + 1| = 4$

$x + 1 = 4 \\ x + 1 = - 4$

$x = 3 \\ x = - 5$

$x1 = - 5.x2 = 3$