2(x+5)-(3+7x)<-13 eching

$$2 ( x + 5 ) - ( 3 + 7 x ) < - 13$$

x uchun yechish

$$x>4$$

Yechim qadamlari

2 ga x+5 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$2x+10-\left(3+7x\right)<-13$$

3+7x teskarisini topish uchun har birining teskarisini toping.

$$2x+10-3-7x<-13$$

7 olish uchun 10 dan 3 ni ayirish.

$$2x+7-7x<-13$$

-5x ni olish uchun 2x va -7x ni birlashtirish.

$$-5x+7<-13$$

Ikkala tarafdan 7 ni ayirish.

$$-5x<-13-7$$

-20 olish uchun -13 dan 7 ni ayirish.

$$-5x<-20$$

Ikki tarafini -5 ga bo‘ling. -5 manfiy boʻlgani uchun tengsizlikning yo‘nalishi o‘zgaradi.

$$x>\frac{-20}{-5}$$

4 ni olish uchun -20 ni -5 ga bo‘ling.

$$x>4$$