x uchun yechish
x=2
Grafik
Baham ko'rish
Klipbordga nusxa olish
3+8+4x+1=20-2\left(2-x\right)
2 ga 4+2x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
11+4x+1=20-2\left(2-x\right)
11 olish uchun 3 va 8'ni qo'shing.
12+4x=20-2\left(2-x\right)
12 olish uchun 11 va 1'ni qo'shing.
12+4x=20-4+2x
-2 ga 2-x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
12+4x=16+2x
16 olish uchun 20 dan 4 ni ayirish.
12+4x-2x=16
Ikkala tarafdan 2x ni ayirish.
12+2x=16
2x ni olish uchun 4x va -2x ni birlashtirish.
2x=16-12
Ikkala tarafdan 12 ni ayirish.
2x=4
4 olish uchun 16 dan 12 ni ayirish.
x=\frac{4}{2}
Ikki tarafini 2 ga bo‘ling.
x=2
2 ni olish uchun 4 ni 2 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}