r uchun yechish
r=10
Baham ko'rish
Klipbordga nusxa olish
\left(r-4\right)\times 3=\left(r-1\right)\times 2
r qiymati 1,4 qiymatlaridan birortasiga teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini \left(r-4\right)\left(r-1\right) ga, r-1,r-4 ning eng kichik karralisiga ko‘paytiring.
3r-12=\left(r-1\right)\times 2
r-4 ga 3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
3r-12=2r-2
r-1 ga 2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
3r-12-2r=-2
Ikkala tarafdan 2r ni ayirish.
r-12=-2
r ni olish uchun 3r va -2r ni birlashtirish.
r=-2+12
12 ni ikki tarafga qo’shing.
r=10
10 olish uchun -2 va 12'ni qo'shing.
Misollar
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