9m+3<9+4(7m-3)-21m eching

$$9 m + 3 < 9 + 4 ( 7 m - 3 ) - 21 m$$

m uchun yechish

$$m<-3$$

Yechim qadamlari

4 ga 7m-3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$9m+3<9+28m-12-21m$$

-3 olish uchun 9 dan 12 ni ayirish.

$$9m+3<-3+28m-21m$$

7m ni olish uchun 28m va -21m ni birlashtirish.

$$9m+3<-3+7m$$

Ikkala tarafdan 7m ni ayirish.

$$9m+3-7m<-3$$

2m ni olish uchun 9m va -7m ni birlashtirish.

$$2m+3<-3$$

Ikkala tarafdan 3 ni ayirish.

$$2m<-3-3$$

-6 olish uchun -3 dan 3 ni ayirish.

$$2m<-6$$

Ikki tarafini 2 ga bo‘ling. 2 musbat bo‘lgani uchun, tengsizlik yo‘nalishi o‘zgarmaydi.

$$m<\frac{-6}{2}$$

-3 ni olish uchun -6 ni 2 ga bo‘ling.

$$m<-3$$