a uchun yechish
a=5
Baham ko'rish
Klipbordga nusxa olish
2\left(a+2\right)=7\left(a-3\right)
Tenglamaning ikkala tarafini 14 ga, 7,2 ning eng kichik karralisiga ko‘paytiring.
2a+4=7\left(a-3\right)
2 ga a+2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
2a+4=7a-21
7 ga a-3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
2a+4-7a=-21
Ikkala tarafdan 7a ni ayirish.
-5a+4=-21
-5a ni olish uchun 2a va -7a ni birlashtirish.
-5a=-21-4
Ikkala tarafdan 4 ni ayirish.
-5a=-25
-25 olish uchun -21 dan 4 ni ayirish.
a=\frac{-25}{-5}
Ikki tarafini -5 ga bo‘ling.
a=5
5 ni olish uchun -25 ni -5 ga bo‘ling.
Misollar
Ikkilik tenglama
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Chiziqli tenglama
y = 3x + 4
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699 * 533
Matritsa
\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]
Simli tenglama
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Differensatsiya
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Oʻngga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Chegaralar
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}