Whakaoti mō x
x>3
Graph
Tohaina
Kua tāruatia ki te papatopenga
7\left(3-x\right)<4\left(2x-6\right)
Me whakarea ngā taha e rua o te whārite ki te 28, arā, te tauraro pātahi he tino iti rawa te kitea o 4,7. I te mea he tōrunga te 28, kāore e huri te ahunga koreōrite.
21-7x<4\left(2x-6\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te 3-x.
21-7x<8x-24
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2x-6.
21-7x-8x<-24
Tangohia te 8x mai i ngā taha e rua.
21-15x<-24
Pahekotia te -7x me -8x, ka -15x.
-15x<-24-21
Tangohia te 21 mai i ngā taha e rua.
-15x<-45
Tangohia te 21 i te -24, ka -45.
x>\frac{-45}{-15}
Whakawehea ngā taha e rua ki te -15. I te mea he tōraro a -15, ka huri te ahunga koreōrite.
x>3
Whakawehea te -45 ki te -15, kia riro ko 3.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\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]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}