x uchun yechish
x=-13
Grafik
Baham ko'rish
Klipbordga nusxa olish
8x-28-3\left(3x+1\right)=2-\left(7-x\right)
4 ga 2x-7 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
8x-28-9x-3=2-\left(7-x\right)
-3 ga 3x+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-x-28-3=2-\left(7-x\right)
-x ni olish uchun 8x va -9x ni birlashtirish.
-x-31=2-\left(7-x\right)
-31 olish uchun -28 dan 3 ni ayirish.
-x-31=2-7-\left(-x\right)
7-x teskarisini topish uchun har birining teskarisini toping.
-x-31=2-7+x
-x ning teskarisi x ga teng.
-x-31=-5+x
-5 olish uchun 2 dan 7 ni ayirish.
-x-31-x=-5
Ikkala tarafdan x ni ayirish.
-2x-31=-5
-2x ni olish uchun -x va -x ni birlashtirish.
-2x=-5+31
31 ni ikki tarafga qo’shing.
-2x=26
26 olish uchun -5 va 31'ni qo'shing.
x=\frac{26}{-2}
Ikki tarafini -2 ga bo‘ling.
x=-13
-13 ni olish uchun 26 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}