x uchun yechish
x = \frac{5}{3} = 1\frac{2}{3} \approx 1,666666667
Grafik
Baham ko'rish
Klipbordga nusxa olish
7-\left(8x-3x-9\right)=5x-\left(4-2x\right)
-3 ga x+3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
7-\left(5x-9\right)=5x-\left(4-2x\right)
5x ni olish uchun 8x va -3x ni birlashtirish.
7-5x-\left(-9\right)=5x-\left(4-2x\right)
5x-9 teskarisini topish uchun har birining teskarisini toping.
7-5x+9=5x-\left(4-2x\right)
-9 ning teskarisi 9 ga teng.
16-5x=5x-\left(4-2x\right)
16 olish uchun 7 va 9'ni qo'shing.
16-5x=5x-4-\left(-2x\right)
4-2x teskarisini topish uchun har birining teskarisini toping.
16-5x=5x-4+2x
-2x ning teskarisi 2x ga teng.
16-5x=7x-4
7x ni olish uchun 5x va 2x ni birlashtirish.
16-5x-7x=-4
Ikkala tarafdan 7x ni ayirish.
16-12x=-4
-12x ni olish uchun -5x va -7x ni birlashtirish.
-12x=-4-16
Ikkala tarafdan 16 ni ayirish.
-12x=-20
-20 olish uchun -4 dan 16 ni ayirish.
x=\frac{-20}{-12}
Ikki tarafini -12 ga bo‘ling.
x=\frac{5}{3}
\frac{-20}{-12} ulushini -4 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}