a uchun yechish
a=-\frac{1}{5}=-0,2
Baham ko'rish
Klipbordga nusxa olish
-12-3\left(3a-a\right)=2\left(2a-5\right)
Tenglamaning ikkala tarafini 12 ga, 4,6 ning eng kichik karralisiga ko‘paytiring.
-12-3\times 2a=2\left(2a-5\right)
2a ni olish uchun 3a va -a ni birlashtirish.
-12-6a=2\left(2a-5\right)
-6 hosil qilish uchun -3 va 2 ni ko'paytirish.
-12-6a=4a-10
2 ga 2a-5 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-12-6a-4a=-10
Ikkala tarafdan 4a ni ayirish.
-12-10a=-10
-10a ni olish uchun -6a va -4a ni birlashtirish.
-10a=-10+12
12 ni ikki tarafga qo’shing.
-10a=2
2 olish uchun -10 va 12'ni qo'shing.
a=\frac{2}{-10}
Ikki tarafini -10 ga bo‘ling.
a=-\frac{1}{5}
\frac{2}{-10} ulushini 2 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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