Whakaoti i te {l}{3x=30}{2y+x=20}{2u+y=13}{z=x+y*u}{a=z}{b=a}{text{Solvefor}ctext{where}}{c=b}

$$\left. \begin{array} { l } { 3 x = 30 }\\ { 2 y + x = 20 }\\ { 2 u + y = 13 }\\ { z = x + y \cdot u }\\ { a = z }\\ { b = a }\\ { \text{Solve for } c \text{ where} } \\ { c = b } \end{array} \right.$$

Whakaoti mō x, y, u, z, a, b, c

$$c=30$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Whakawehea ngā taha e rua ki te 3.

$$x=\frac{30}{3}$$

Whakawehea te 30 ki te 3, kia riro ko 10.

$$x=10$$

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

$$2y+10=20$$

Tangohia te 10 mai i ngā taha e rua.

$$2y=20-10$$

Tangohia te 10 i te 20, ka 10.

$$2y=10$$

Whakawehea ngā taha e rua ki te 2.

$$y=\frac{10}{2}$$

Whakawehea te 10 ki te 2, kia riro ko 5.

$$y=5$$

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

$$2u+5=13$$

Tangohia te 5 mai i ngā taha e rua.

$$2u=13-5$$

Tangohia te 5 i te 13, ka 8.

$$2u=8$$

Whakawehea ngā taha e rua ki te 2.

$$u=\frac{8}{2}$$

Whakawehea te 8 ki te 2, kia riro ko 4.

$$u=4$$

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

$$z=10+5\times 4$$

Whakareatia te 5 ki te 4, ka 20.

$$z=10+20$$

Tāpirihia te 10 ki te 20, ka 30.

$$z=30$$

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

$$a=30$$

Whakaarohia te whārite (6). Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$b=30$$

Whakaarohia te whārite (7). Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.

$$c=30$$

Kua oti te pūnaha te whakatau.

$$x=10 y=5 u=4 z=30 a=30 b=30 c=30$$