Whakaoti i te {l}{2x+6y-5z=-4}{x+y-z=0}{z=-1}-0

$$\left.\begin{array} { l } { 2 x + 6 y - 5 z = - 4 } \\ { x + y - z = 0 } \\ { z = - 1 } \end{array} \right\} - 0$$

Whakaoti mō x, y, z

$$x=\frac{3}{4}=0.75$$

$$y = -\frac{7}{4} = -1\frac{3}{4} = -1.75$$

$$z=-1$$

Ngā Hipanga Poto E Whakamahi Whakakapinga Ana

Me raupapa anō ngā whārite.

$$z=-1 x+y-z=0 2x+6y-5z=-4$$

Whakakapia te -1 mō te z i te whārite tuarua me te tuatoru.

$$x+y-\left(-1\right)=0 2x+6y-5\left(-1\right)=-4$$

Me whakaoti ēnei whārite mō y me x takitahi.

$$y=-x-1 x=-\frac{9}{2}-3y$$

Whakakapia te -x-1 mō te y i te whārite x=-\frac{9}{2}-3y.

$$x=-\frac{9}{2}-3\left(-x-1\right)$$

Me whakaoti te x=-\frac{9}{2}-3\left(-x-1\right) mō x.

$$x=\frac{3}{4}$$

Whakakapia te \frac{3}{4} mō te x i te whārite y=-x-1.

$$y=-\frac{3}{4}-1$$

Tātaitia te y i te y=-\frac{3}{4}-1.

$$y=-\frac{7}{4}$$

Kua oti te pūnaha te whakatau.

$$x=\frac{3}{4} y=-\frac{7}{4} z=-1$$