x uchun yechish
x = \frac{21}{2} = 10\frac{1}{2} = 10,5
Grafik
Baham ko'rish
Klipbordga nusxa olish
-x=\frac{7}{2}\left(-3\right)
Ikkala tarafini -3 ga ko‘paytiring.
-x=\frac{7\left(-3\right)}{2}
\frac{7}{2}\left(-3\right) ni yagona kasrga aylantiring.
-x=\frac{-21}{2}
-21 hosil qilish uchun 7 va -3 ni ko'paytirish.
-x=-\frac{21}{2}
\frac{-21}{2} kasri manfiy belgini olib tashlash bilan -\frac{21}{2} sifatida qayta yozilishi mumkin.
x=\frac{21}{2}
Ikkala tarafini -1 ga ko‘paytiring.
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}