x uchun yechish
x = -\frac{62}{7} = -8\frac{6}{7} \approx -8,857142857
Grafik
Viktorina
Linear Equation
8(9-x)=5(2-3x)
Baham ko'rish
Klipbordga nusxa olish
72-8x=5\left(2-3x\right)
8 ga 9-x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
72-8x=10-15x
5 ga 2-3x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
72-8x+15x=10
15x ni ikki tarafga qo’shing.
72+7x=10
7x ni olish uchun -8x va 15x ni birlashtirish.
7x=10-72
Ikkala tarafdan 72 ni ayirish.
7x=-62
-62 olish uchun 10 dan 72 ni ayirish.
x=\frac{-62}{7}
Ikki tarafini 7 ga bo‘ling.
x=-\frac{62}{7}
\frac{-62}{7} kasri manfiy belgini olib tashlash bilan -\frac{62}{7} sifatida qayta yozilishi mumkin.
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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