x uchun yechish
x = \frac{44}{7} = 6\frac{2}{7} \approx 6,285714286
Grafik
Baham ko'rish
Klipbordga nusxa olish
40-2x-2\left(2x-2\right)=1x
Tenglamaning ikkala tarafini 4 ga, 2,4 ning eng kichik karralisiga ko‘paytiring.
40-2x-4x+4=1x
-2 ga 2x-2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
40-6x+4=1x
-6x ni olish uchun -2x va -4x ni birlashtirish.
44-6x=1x
44 olish uchun 40 va 4'ni qo'shing.
44-6x-x=0
Ikkala tarafdan 1x ni ayirish.
44-7x=0
-7x ni olish uchun -6x va -x ni birlashtirish.
-7x=-44
Ikkala tarafdan 44 ni ayirish. Har qanday sonni noldan ayirsangiz, o‘zining manfiyi chiqadi.
x=\frac{-44}{-7}
Ikki tarafini -7 ga bo‘ling.
x=\frac{44}{7}
Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-44}{-7} kasrini \frac{44}{7} ga soddalashtirish mumkin.
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}