z uchun yechish
z = \frac{21}{8} = 2\frac{5}{8} = 2,625
Baham ko'rish
Klipbordga nusxa olish
4z-8-5+4=4-4z+8
4 ga z-2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
4z-13+4=4-4z+8
-13 olish uchun -8 dan 5 ni ayirish.
4z-9=4-4z+8
-9 olish uchun -13 va 4'ni qo'shing.
4z-9=12-4z
12 olish uchun 4 va 8'ni qo'shing.
4z-9+4z=12
4z ni ikki tarafga qo’shing.
8z-9=12
8z ni olish uchun 4z va 4z ni birlashtirish.
8z=12+9
9 ni ikki tarafga qo’shing.
8z=21
21 olish uchun 12 va 9'ni qo'shing.
z=\frac{21}{8}
Ikki tarafini 8 ga bo‘ling.
Misollar
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