Whakaoti i te {l}{x{(.8)}=5+x}{y=5*{(0)}+x}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { x {(.8)} = 5 + x }\\ { y = 5 \cdot {(0)} + x }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Whakaoti mō x, y, z, a, b

$$b=-25$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Tangohia te x mai i ngā taha e rua.

$$x\times 0.8-x=5$$

Pahekotia te x\times 0.8 me -x, ka -0.2x.

$$-0.2x=5$$

Whakawehea ngā taha e rua ki te -0.2.

$$x=\frac{5}{-0.2}$$

Whakarohaina te \frac{5}{-0.2} mā te whakarea i te taurunga me te tauraro ki te 10.

$$x=\frac{50}{-2}$$

Whakawehea te 50 ki te -2, kia riro ko -25.

$$x=-25$$

Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$y=5\times 0-25$$

Whakareatia te 5 ki te 0, ka 0.

$$y=0-25$$

Tangohia te 25 i te 0, ka -25.

$$y=-25$$

Whakaarohia te whārite tuatoru. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$z=-25$$

Whakaarohia te whārite tuawhā. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$a=-25$$

Whakaarohia te whārite tuarima. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$b=-25$$

Kua oti te pūnaha te whakatau.

$$x=-25 y=-25 z=-25 a=-25 b=-25$$