x uchun yechish
x=-\frac{11}{19}\approx -0,578947368
Grafik
Baham ko'rish
Klipbordga nusxa olish
-21x=-x+3-\left(x+2\right)+10
-21x ni olish uchun -15x va -6x ni birlashtirish.
-21x=-x+3-x-2+10
x+2 teskarisini topish uchun har birining teskarisini toping.
-21x=-x+1-x+10
1 olish uchun 3 dan 2 ni ayirish.
-21x=-x+11-x
11 olish uchun 1 va 10'ni qo'shing.
-21x+x=11-x
x ni ikki tarafga qo’shing.
-20x=11-x
-20x ni olish uchun -21x va x ni birlashtirish.
-20x+x=11
x ni ikki tarafga qo’shing.
-19x=11
-19x ni olish uchun -20x va x ni birlashtirish.
x=\frac{11}{-19}
Ikki tarafini -19 ga bo‘ling.
x=-\frac{11}{19}
\frac{11}{-19} kasri manfiy belgini olib tashlash bilan -\frac{11}{19} sifatida qayta yozilishi mumkin.
Misollar
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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}