x uchun yechish
x=-\frac{20}{799}\approx -0,025031289
Grafik
Baham ko'rish
Klipbordga nusxa olish
x-2x\times 400=20
Tenglamaning ikkala tarafini 20 ga, 20,10 ning eng kichik karralisiga ko‘paytiring.
x-800x=20
800 hosil qilish uchun 2 va 400 ni ko'paytirish.
-799x=20
-799x ni olish uchun x va -800x ni birlashtirish.
x=\frac{20}{-799}
Ikki tarafini -799 ga bo‘ling.
x=-\frac{20}{799}
\frac{20}{-799} kasri manfiy belgini olib tashlash bilan -\frac{20}{799} sifatida qayta yozilishi mumkin.
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