Whakaoti mō x
x=-3
Graph
Tohaina
Kua tāruatia ki te papatopenga
18-3\left(-x\right)-2\left(-x\right)=3
Tangohia te 2\left(-x\right) mai i ngā taha e rua.
18-3\left(-1\right)x-2\left(-1\right)x=3
Whakareatia te -1 ki te 3, ka -3.
18+3x-2\left(-1\right)x=3
Whakareatia te -3 ki te -1, ka 3.
18+3x+2x=3
Whakareatia te -2 ki te -1, ka 2.
18+5x=3
Pahekotia te 3x me 2x, ka 5x.
5x=3-18
Tangohia te 18 mai i ngā taha e rua.
5x=-15
Tangohia te 18 i te 3, ka -15.
x=\frac{-15}{5}
Whakawehea ngā taha e rua ki te 5.
x=-3
Whakawehea te -15 ki te 5, 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}