Whakaoti mō x
x\geq 8
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Tohaina
Kua tāruatia ki te papatopenga
3x+4x-18\geq 6\left(1+x\right)-16
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te 2x-9.
7x-18\geq 6\left(1+x\right)-16
Pahekotia te 3x me 4x, ka 7x.
7x-18\geq 6+6x-16
Whakamahia te āhuatanga tohatoha hei whakarea te 6 ki te 1+x.
7x-18\geq -10+6x
Tangohia te 16 i te 6, ka -10.
7x-18-6x\geq -10
Tangohia te 6x mai i ngā taha e rua.
x-18\geq -10
Pahekotia te 7x me -6x, ka x.
x\geq -10+18
Me tāpiri te 18 ki ngā taha e rua.
x\geq 8
Tāpirihia te -10 ki te 18, ka 8.
Ngā Tauira
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{ 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}