a uchun yechish
a=\frac{12}{41}\approx 0,292682927
Baham ko'rish
Klipbordga nusxa olish
a+12=42a
Tenglamaning ikkala tarafini 3 ga ko'paytirish.
a+12-42a=0
Ikkala tarafdan 42a ni ayirish.
-41a+12=0
-41a ni olish uchun a va -42a ni birlashtirish.
-41a=-12
Ikkala tarafdan 12 ni ayirish. Har qanday sonni noldan ayirsangiz, o‘zining manfiyi chiqadi.
a=\frac{-12}{-41}
Ikki tarafini -41 ga bo‘ling.
a=\frac{12}{41}
Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-12}{-41} kasrini \frac{12}{41} 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}