r uchun yechish
r=\frac{12}{13}\approx 0,923076923
Baham ko'rish
Klipbordga nusxa olish
8r-3+5r=9
5r ni ikki tarafga qo’shing.
13r-3=9
13r ni olish uchun 8r va 5r ni birlashtirish.
13r=9+3
3 ni ikki tarafga qo’shing.
13r=12
12 olish uchun 9 va 3'ni qo'shing.
r=\frac{12}{13}
Ikki tarafini 13 ga bo‘ling.
Misollar
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