(-6)+5*(-7)-(-42)div(-9) eching

$$( - 6 ) + 5 \times ( - 7 ) - ( - 42 ) \div ( - 9 )$$

Baholash

$$-\frac{137}{3}\approx -45,666666667$$

Yechim qadamlari

-35 hosil qilish uchun 5 va -7 ni ko'paytirish.

$$-6-35-\frac{-42}{-9}$$

-41 olish uchun -6 dan 35 ni ayirish.

$$-41-\frac{-42}{-9}$$

\frac{-42}{-9} ulushini -3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$-41-\frac{14}{3}$$

-41 ni -\frac{123}{3} kasrga o‘giring.

$$-\frac{123}{3}-\frac{14}{3}$$

-\frac{123}{3} va \frac{14}{3} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-123-14}{3}$$

-137 olish uchun -123 dan 14 ni ayirish.

$$-\frac{137}{3}$$

Omil

$$-\frac{137}{3} = -45\frac{2}{3} = -45,666666666666664$$