-4z+31geq17z+23 eching

$$- 4 z + 31 \geq 17 z + 23$$

z uchun yechish

$$z\leq \frac{8}{21}$$

Yechim qadamlari

Ikkala tarafdan 17z ni ayirish.

$$-4z+31-17z\geq 23$$

-21z ni olish uchun -4z va -17z ni birlashtirish.

$$-21z+31\geq 23$$

Ikkala tarafdan 31 ni ayirish.

$$-21z\geq 23-31$$

-8 olish uchun 23 dan 31 ni ayirish.

$$-21z\geq -8$$

Ikki tarafini -21 ga bo‘ling. -21 manfiy boʻlgani uchun tengsizlikning yo‘nalishi o‘zgaradi.

$$z\leq \frac{-8}{-21}$$

Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-8}{-21} kasrini \frac{8}{21} ga soddalashtirish mumkin.

$$z\leq \frac{8}{21}$$