Whakaoti mō x
x<1
Graph
Tohaina
Kua tāruatia ki te papatopenga
21-28x+12>5\left(4-3x\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te 3-4x.
33-28x>5\left(4-3x\right)
Tāpirihia te 21 ki te 12, ka 33.
33-28x>20-15x
Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 4-3x.
33-28x+15x>20
Me tāpiri te 15x ki ngā taha e rua.
33-13x>20
Pahekotia te -28x me 15x, ka -13x.
-13x>20-33
Tangohia te 33 mai i ngā taha e rua.
-13x>-13
Tangohia te 33 i te 20, ka -13.
x<\frac{-13}{-13}
Whakawehea ngā taha e rua ki te -13. I te mea he tōraro a -13, ka huri te ahunga koreōrite.
x<1
Whakawehea te -13 ki te -13, kia riro ko 1.
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}