x uchun yechish
x = \frac{17}{4} = 4\frac{1}{4} = 4,25
Grafik
Baham ko'rish
Klipbordga nusxa olish
10x-21-\left(-4x\right)=-11\left(5-2x\right)
21-4x teskarisini topish uchun har birining teskarisini toping.
10x-21+4x=-11\left(5-2x\right)
-4x ning teskarisi 4x ga teng.
14x-21=-11\left(5-2x\right)
14x ni olish uchun 10x va 4x ni birlashtirish.
14x-21=-55+22x
-11 ga 5-2x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
14x-21-22x=-55
Ikkala tarafdan 22x ni ayirish.
-8x-21=-55
-8x ni olish uchun 14x va -22x ni birlashtirish.
-8x=-55+21
21 ni ikki tarafga qo’shing.
-8x=-34
-34 olish uchun -55 va 21'ni qo'shing.
x=\frac{-34}{-8}
Ikki tarafini -8 ga bo‘ling.
x=\frac{17}{4}
\frac{-34}{-8} ulushini -2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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}