x_15 uchun yechish
x_{15}=2100-x_{6}
x_6 uchun yechish
x_{6}=2100-x_{15}
Baham ko'rish
Klipbordga nusxa olish
-900+x_{15}=1200-x_{6}
Ikkala tarafdan x_{6} ni ayirish.
x_{15}=1200-x_{6}+900
900 ni ikki tarafga qo’shing.
x_{15}=2100-x_{6}
2100 olish uchun 1200 va 900'ni qo'shing.
x_{6}+x_{15}=1200+900
900 ni ikki tarafga qo’shing.
x_{6}+x_{15}=2100
2100 olish uchun 1200 va 900'ni qo'shing.
x_{6}=2100-x_{15}
Ikkala tarafdan x_{15} ni ayirish.
Misollar
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