1-2(-3)/5(-3)+7 eching

$$\frac { 1 - 2 ( - 3 ) } { 5 ( - 3 ) + 7 }$$

Baholash

$$-\frac{7}{8}=-0,875$$

Yechim qadamlari

-6 hosil qilish uchun 2 va -3 ni ko'paytirish.

$$\frac{1-\left(-6\right)}{5\left(-3\right)+7}$$

-6 ning teskarisi 6 ga teng.

$$\frac{1+6}{5\left(-3\right)+7}$$

7 olish uchun 1 va 6'ni qo'shing.

$$\frac{7}{5\left(-3\right)+7}$$

-15 hosil qilish uchun 5 va -3 ni ko'paytirish.

$$\frac{7}{-15+7}$$

-8 olish uchun -15 va 7'ni qo'shing.

$$\frac{7}{-8}$$

\frac{7}{-8} kasri manfiy belgini olib tashlash bilan -\frac{7}{8} sifatida qayta yozilishi mumkin.

$$-\frac{7}{8}$$

Omil

$$-\frac{7}{8} = -0,875$$