x uchun yechish
x=-21
Grafik
Viktorina
Linear Equation
3(x+7)-4=2(x-2)
Baham ko'rish
Klipbordga nusxa olish
3x+21-4=2\left(x-2\right)
3 ga x+7 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
3x+17=2\left(x-2\right)
17 olish uchun 21 dan 4 ni ayirish.
3x+17=2x-4
2 ga x-2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
3x+17-2x=-4
Ikkala tarafdan 2x ni ayirish.
x+17=-4
x ni olish uchun 3x va -2x ni birlashtirish.
x=-4-17
Ikkala tarafdan 17 ni ayirish.
x=-21
-21 olish uchun -4 dan 17 ni ayirish.
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}