\left\{ \begin{array} { l } { 2 x + y + 2 = 17 } \\ { x + 2 y + 2 = 14 } \\ { x + y + 2 z = 13 } \end{array} \right.
Whakaoti mō x, y, z
x=6
y=3
z=2
Tohaina
Kua tāruatia ki te papatopenga
y=-2x+15
Me whakaoti te 2x+y+2=17 mō y.
x+2\left(-2x+15\right)+2=14 x-2x+15+2z=13
Whakakapia te -2x+15 mō te y i te whārite tuarua me te tuatoru.
x=6 z=\frac{1}{2}x-1
Me whakaoti ēnei whārite mō x me z takitahi.
z=\frac{1}{2}\times 6-1
Whakakapia te 6 mō te x i te whārite z=\frac{1}{2}x-1.
z=2
Tātaitia te z i te z=\frac{1}{2}\times 6-1.
y=-2\times 6+15
Whakakapia te 6 mō te x i te whārite y=-2x+15.
y=3
Tātaitia te y i te y=-2\times 6+15.
x=6 y=3 z=2
Kua oti te pūnaha te whakatau.
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}