z uchun yechish
z = -\frac{5}{2} = -2\frac{1}{2} = -2,5
Baham ko'rish
Klipbordga nusxa olish
37z+15=35z+10
5 ga 7z+2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
37z+15-35z=10
Ikkala tarafdan 35z ni ayirish.
2z+15=10
2z ni olish uchun 37z va -35z ni birlashtirish.
2z=10-15
Ikkala tarafdan 15 ni ayirish.
2z=-5
-5 olish uchun 10 dan 15 ni ayirish.
z=\frac{-5}{2}
Ikki tarafini 2 ga bo‘ling.
z=-\frac{5}{2}
\frac{-5}{2} kasri manfiy belgini olib tashlash bilan -\frac{5}{2} sifatida qayta yozilishi mumkin.
Misollar
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