x uchun yechish
x = -\frac{5}{2} = -2\frac{1}{2} = -2,5
Grafik
Baham ko'rish
Klipbordga nusxa olish
\left(x+2\right)\times 7=x-1
x qiymati -2,1 qiymatlaridan birortasiga teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini \left(x-1\right)\left(x+2\right) ga, x-1,x+2 ning eng kichik karralisiga ko‘paytiring.
7x+14=x-1
x+2 ga 7 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
7x+14-x=-1
Ikkala tarafdan x ni ayirish.
6x+14=-1
6x ni olish uchun 7x va -x ni birlashtirish.
6x=-1-14
Ikkala tarafdan 14 ni ayirish.
6x=-15
-15 olish uchun -1 dan 14 ni ayirish.
x=\frac{-15}{6}
Ikki tarafini 6 ga bo‘ling.
x=-\frac{5}{2}
\frac{-15}{6} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
Misollar
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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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Chegaralar
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