Whakaoti i te {l}{5{(2x-4)}-6=-2{(x-5)}}{y=xx}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { 5 {(2 x - 4)} - 6 = -2 {(x - 5)} }\\ { y = x x }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Whakaoti mō x, y, z, a, b

$$b=9$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Whakamahia te āhuatanga tohatoha hei whakarea te 5 ki te 2x-4.

$$10x-20-6=-2\left(x-5\right)$$

Tangohia te 6 i te -20, ka -26.

$$10x-26=-2\left(x-5\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x-5.

$$10x-26=-2x+10$$

Me tāpiri te 2x ki ngā taha e rua.

$$10x-26+2x=10$$

Pahekotia te 10x me 2x, ka 12x.

$$12x-26=10$$

Me tāpiri te 26 ki ngā taha e rua.

$$12x=10+26$$

Tāpirihia te 10 ki te 26, ka 36.

$$12x=36$$

Whakawehea ngā taha e rua ki te 12.

$$x=\frac{36}{12}$$

Whakawehea te 36 ki te 12, kia riro ko 3.

$$x=3$$

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

$$y=3\times 3$$

Whakareatia te 3 ki te 3, ka 9.

$$y=9$$

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

$$z=9$$

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

$$a=9$$

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

$$b=9$$

Kua oti te pūnaha te whakatau.

$$x=3 y=9 z=9 a=9 b=9$$