x uchun yechish
x=-2
Grafik
Baham ko'rish
Klipbordga nusxa olish
5x-15+2\left(x+1\right)=3\left(x-7\right)
5 ga x-3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
5x-15+2x+2=3\left(x-7\right)
2 ga x+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
7x-15+2=3\left(x-7\right)
7x ni olish uchun 5x va 2x ni birlashtirish.
7x-13=3\left(x-7\right)
-13 olish uchun -15 va 2'ni qo'shing.
7x-13=3x-21
3 ga x-7 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
7x-13-3x=-21
Ikkala tarafdan 3x ni ayirish.
4x-13=-21
4x ni olish uchun 7x va -3x ni birlashtirish.
4x=-21+13
13 ni ikki tarafga qo’shing.
4x=-8
-8 olish uchun -21 va 13'ni qo'shing.
x=\frac{-8}{4}
Ikki tarafini 4 ga bo‘ling.
x=-2
-2 ni olish uchun -8 ni 4 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}