Whakaoti i te {l}{F(x)=2x-1}{9(x)=3x+9}

$$\left. \begin{array} { l } { F ( x ) = 2 x - 1 } \\ { 9 ( x ) = 3 x + 9 } \end{array} \right.$$

Whakaoti mō F, x

$$x = \frac{3}{2} = 1\frac{1}{2} = 1.5$$

$$F = \frac{4}{3} = 1\frac{1}{3} \approx 1.333333333$$

Ngā Upane Otinga

Whakaarohia te whārite tuarua. Tangohia te 3x mai i ngā taha e rua.

$$9x-3x=9$$

Pahekotia te 9x me -3x, ka 6x.

$$6x=9$$

Whakawehea ngā taha e rua ki te 6.

$$x=\frac{9}{6}$$

Whakahekea te hautanga \frac{9}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$x=\frac{3}{2}$$

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

$$F\times \frac{3}{2}=2\times \frac{3}{2}-1$$

Whakareatia te 2 ki te \frac{3}{2}, ka 3.

$$F\times \frac{3}{2}=3-1$$

Tangohia te 1 i te 3, ka 2.

$$F\times \frac{3}{2}=2$$

Me whakarea ngā taha e rua ki te \frac{2}{3}, te tau utu o \frac{3}{2}.

$$F=2\times \frac{2}{3}$$

Whakareatia te 2 ki te \frac{2}{3}, ka \frac{4}{3}.

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

Kua oti te pūnaha te whakatau.

$$F=\frac{4}{3} x=\frac{3}{2}$$