x uchun yechish
x = -\frac{33}{7} = -4\frac{5}{7} \approx -4,714285714
Grafik
Viktorina
Linear Equation
-5x-21=9(x+5)
Baham ko'rish
Klipbordga nusxa olish
-5x-21=9x+45
9 ga x+5 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-5x-21-9x=45
Ikkala tarafdan 9x ni ayirish.
-14x-21=45
-14x ni olish uchun -5x va -9x ni birlashtirish.
-14x=45+21
21 ni ikki tarafga qo’shing.
-14x=66
66 olish uchun 45 va 21'ni qo'shing.
x=\frac{66}{-14}
Ikki tarafini -14 ga bo‘ling.
x=-\frac{33}{7}
\frac{66}{-14} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
Misollar
Ikkilik tenglama
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Chiziqli tenglama
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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}