k uchun yechish
k=6
Baham ko'rish
Klipbordga nusxa olish
2+2k=-28+7k
Tenglamaning ikkala tarafini 7 ga ko'paytirish.
2+2k-7k=-28
Ikkala tarafdan 7k ni ayirish.
2-5k=-28
-5k ni olish uchun 2k va -7k ni birlashtirish.
-5k=-28-2
Ikkala tarafdan 2 ni ayirish.
-5k=-30
-30 olish uchun -28 dan 2 ni ayirish.
k=\frac{-30}{-5}
Ikki tarafini -5 ga bo‘ling.
k=6
6 ni olish uchun -30 ni -5 ga bo‘ling.
Misollar
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