( -5 ) . 4 . 2 (-2) . 3 . ( -25 )
= { ( -5 ) . 2 } . { (- 25) . 4 } . { (-2) . 3 }
= (-10 ) . ( -100 ) . (-6)
=1000 . ( -6 )
= -6000
x - 105 : 3 = -23
$\Rightarrow x - 35 = -23$
$\Rightarrow x = -23 + 35$
$\Rightarrow x = 12$
Vậy : $x = 12 $
| x - 8 |+12 = 25
$\Rightarrow | x - 8 | = 25 - 12 $
$\Rightarrow | x - 8 | = 13 $
$\Rightarrow $\(\left[ \begin{array}{l}x-8 = 13\\x-8=-13\end{array} \right.\)
$\Rightarrow $ \(\left[ \begin{array}{l}x=21\\x=-5\end{array} \right.\)
Vậy : \(\left[ \begin{array}{l}x=21\\x=-5\end{array} \right.\)
