n uchun yechish
n=-2
Baham ko'rish
Klipbordga nusxa olish
3\left(2n-5\right)+8=5n-9
Tenglamaning ikkala tarafini 6 ga, 2,3,6 ning eng kichik karralisiga ko‘paytiring.
6n-15+8=5n-9
3 ga 2n-5 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
6n-7=5n-9
-7 olish uchun -15 va 8'ni qo'shing.
6n-7-5n=-9
Ikkala tarafdan 5n ni ayirish.
n-7=-9
n ni olish uchun 6n va -5n ni birlashtirish.
n=-9+7
7 ni ikki tarafga qo’shing.
n=-2
-2 olish uchun -9 va 7'ni qo'shing.
Misollar
Ikkilik tenglama
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometriya
4 \sin \theta \cos \theta = 2 \sin \theta
Chiziqli tenglama
y = 3x + 4
Arifmetik
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
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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}