x uchun yechish
x\leq \frac{16}{7}
Grafik
Viktorina
Algebra
7 ( 3 - x ) \geq 5
Baham ko'rish
Klipbordga nusxa olish
3-x\geq \frac{5}{7}
Ikki tarafini 7 ga bo‘ling. 7 musbat bo‘lgani uchun, tengsizlik yo‘nalishi o‘zgarmaydi.
-x\geq \frac{5}{7}-3
Ikkala tarafdan 3 ni ayirish.
-x\geq \frac{5}{7}-\frac{21}{7}
3 ni \frac{21}{7} kasrga o‘giring.
-x\geq \frac{5-21}{7}
\frac{5}{7} va \frac{21}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.
-x\geq -\frac{16}{7}
-16 olish uchun 5 dan 21 ni ayirish.
x\leq \frac{-\frac{16}{7}}{-1}
Ikki tarafini -1 ga bo‘ling. -1 manfiy boʻlgani uchun tengsizlikning yo‘nalishi o‘zgaradi.
x\leq \frac{-16}{7\left(-1\right)}
\frac{-\frac{16}{7}}{-1} ni yagona kasrga aylantiring.
x\leq \frac{-16}{-7}
-7 hosil qilish uchun 7 va -1 ni ko'paytirish.
x\leq \frac{16}{7}
Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-16}{-7} kasrini \frac{16}{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}