Whakaoti i te {l}{L(-1)=3*(-1)/5-1/15=-3/5-1/15=}{=frac{-6-1}{15}=frac{7}{15}}{P(-1)=2*(-1)=-frac{2}{2}}

$$\left. \begin{array} { l } { L ( - 1 ) = \frac { 3 \cdot ( - 1 ) } { 5 } - \frac { 1 } { 15 } = \frac { - 3 } { 5 } - \frac { 1 } { 15 } = } \\ { = \frac { - 6 - 1 } { 15 } = \frac { 7 } { 15 } } \\ { P ( - 1 ) = 2 \cdot ( - 1 ) = - \frac { 2 } { 2 } } \end{array} \right.$$

Whakaoti mō L

$$L=\frac{2}{3}\approx 0.666666667$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 15, arā, te tauraro pātahi he tino iti rawa te kitea o 5,15.

$$15L\left(-1\right)=3\times 3\left(-1\right)-1$$

Whakareatia te 15 ki te -1, ka -15.

$$-15L=3\times 3\left(-1\right)-1$$

Whakareatia te 3 ki te 3, ka 9.

$$-15L=9\left(-1\right)-1$$

Whakareatia te 9 ki te -1, ka -9.

$$-15L=-9-1$$

Tangohia te 1 i te -9, ka -10.

$$-15L=-10$$

Whakawehea ngā taha e rua ki te -15.

$$L=\frac{-10}{-15}$$

Whakahekea te hautanga \frac{-10}{-15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -5.

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