b uchun yechish
b=-1
Baham ko'rish
Klipbordga nusxa olish
3-2b+4=2-7b
-2 ga b-2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
7-2b=2-7b
7 olish uchun 3 va 4'ni qo'shing.
7-2b+7b=2
7b ni ikki tarafga qo’shing.
7+5b=2
5b ni olish uchun -2b va 7b ni birlashtirish.
5b=2-7
Ikkala tarafdan 7 ni ayirish.
5b=-5
-5 olish uchun 2 dan 7 ni ayirish.
b=\frac{-5}{5}
Ikki tarafini 5 ga bo‘ling.
b=-1
-1 ni olish uchun -5 ni 5 ga bo‘ling.
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}