-3(-20-j)<-4(-3j-6) eching

$$- 3 ( - 20 - j ) < - 4 ( - 3 j - 6 )$$

j uchun yechish

$$j>4$$

Yechim qadamlari

-3 ga -20-j ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$60+3j<-4\left(-3j-6\right)$$

-4 ga -3j-6 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$60+3j<12j+24$$

Ikkala tarafdan 12j ni ayirish.

$$60+3j-12j<24$$

-9j ni olish uchun 3j va -12j ni birlashtirish.

$$60-9j<24$$

Ikkala tarafdan 60 ni ayirish.

$$-9j<24-60$$

-36 olish uchun 24 dan 60 ni ayirish.

$$-9j<-36$$

Ikki tarafini -9 ga bo‘ling. -9 manfiy boʻlgani uchun tengsizlikning yo‘nalishi o‘zgaradi.

$$j>\frac{-36}{-9}$$

4 ni olish uchun -36 ni -9 ga bo‘ling.

$$j>4$$