Question

Решите уравнения.

1) -(-х)+0,48= -6


2) (x-2)*(-0,1)= 5

3) дробь х/-2= дробь 4/5

Answer 1

$1) -(-x) +0,48 = -6 \\ x+0,48=-6 \\ x = -6-0,48 \\ x = -6,48$
$2) (x-2)*(-0,1) = 5 \\ x-2 = 5:(-0,1) \\ x-2 = -50 \\ x= -50+2 \\ x=-48$
$3) \frac{x}{-2} = \frac{4}{5} \\ x = \frac{4}{5}*(-2) \\ x = -\frac{8}{5} \\ x = -1 \frac{3}{5}$