x uchun yechish
x=1
Grafik
Baham ko'rish
Klipbordga nusxa olish
3\left(x+6\right)+7\left(x+2\right)=42
Tenglamaning ikkala tarafini 21 ga, 7,3 ning eng kichik karralisiga ko‘paytiring.
3x+18+7\left(x+2\right)=42
3 ga x+6 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
3x+18+7x+14=42
7 ga x+2 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
10x+18+14=42
10x ni olish uchun 3x va 7x ni birlashtirish.
10x+32=42
32 olish uchun 18 va 14'ni qo'shing.
10x=42-32
Ikkala tarafdan 32 ni ayirish.
10x=10
10 olish uchun 42 dan 32 ni ayirish.
x=\frac{10}{10}
Ikki tarafini 10 ga bo‘ling.
x=1
1 ni olish uchun 10 ni 10 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}