x uchun yechish
x=10
Grafik
Baham ko'rish
Klipbordga nusxa olish
40-x=\left(10-7\right)x
40 olish uchun 10 va 30'ni qo'shing.
40-x=3x
3 olish uchun 10 dan 7 ni ayirish.
40-x-3x=0
Ikkala tarafdan 3x ni ayirish.
40-4x=0
-4x ni olish uchun -x va -3x ni birlashtirish.
-4x=-40
Ikkala tarafdan 40 ni ayirish. Har qanday sonni noldan ayirsangiz, o‘zining manfiyi chiqadi.
x=\frac{-40}{-4}
Ikki tarafini -4 ga bo‘ling.
x=10
10 ni olish uchun -40 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}