x uchun yechish
x = -\frac{197}{55} = -3\frac{32}{55} \approx -3,581818182
Grafik
Baham ko'rish
Klipbordga nusxa olish
300-15x+12\left(30+15x\right)=69
15 ga 20-x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
300-15x+360+180x=69
12 ga 30+15x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
660-15x+180x=69
660 olish uchun 300 va 360'ni qo'shing.
660+165x=69
165x ni olish uchun -15x va 180x ni birlashtirish.
165x=69-660
Ikkala tarafdan 660 ni ayirish.
165x=-591
-591 olish uchun 69 dan 660 ni ayirish.
x=\frac{-591}{165}
Ikki tarafini 165 ga bo‘ling.
x=-\frac{197}{55}
\frac{-591}{165} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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