18:(12-32)-2(26-123)= eching

$$18 : ( 12 - 32 ) - 2 ( 26 - 123 ) =$$

Baholash

$$\frac{1931}{10}=193,1$$

Yechim qadamlari

-20 olish uchun 12 dan 32 ni ayirish.

$$\frac{18}{-20}-2\left(26-123\right)$$

\frac{18}{-20} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-\frac{9}{10}-2\left(26-123\right)$$

-97 olish uchun 26 dan 123 ni ayirish.

$$-\frac{9}{10}-2\left(-97\right)$$

-194 hosil qilish uchun 2 va -97 ni ko'paytirish.

$$-\frac{9}{10}-\left(-194\right)$$

-194 ning teskarisi 194 ga teng.

$$-\frac{9}{10}+194$$

194 ni \frac{1940}{10} kasrga o‘giring.

$$-\frac{9}{10}+\frac{1940}{10}$$

-\frac{9}{10} va \frac{1940}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{-9+1940}{10}$$

1931 olish uchun -9 va 1940'ni qo'shing.

$$\frac{1931}{10}$$

Omil

$$\frac{1931}{2 \cdot 5} = 193\frac{1}{10} = 193,1$$