x uchun yechish
x = \frac{8}{5} = 1\frac{3}{5} = 1,6
Grafik
Baham ko'rish
Klipbordga nusxa olish
8x+4+7=7\left(4x-3\right)
4 ga 2x+1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
8x+11=7\left(4x-3\right)
11 olish uchun 4 va 7'ni qo'shing.
8x+11=28x-21
7 ga 4x-3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
8x+11-28x=-21
Ikkala tarafdan 28x ni ayirish.
-20x+11=-21
-20x ni olish uchun 8x va -28x ni birlashtirish.
-20x=-21-11
Ikkala tarafdan 11 ni ayirish.
-20x=-32
-32 olish uchun -21 dan 11 ni ayirish.
x=\frac{-32}{-20}
Ikki tarafini -20 ga bo‘ling.
x=\frac{8}{5}
\frac{-32}{-20} 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}