Whakaoti i te 15/6+2/5x=11/15div-2

$$1 \frac { 5 } { 6 } + \frac{ 2 }{ 5 } x= \frac{ 11 }{ 15 } \div -2$$

Whakaoti mō x

$$x = -\frac{11}{2} = -5\frac{1}{2} = -5.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua o te whārite ki te 30, arā, te tauraro pātahi he tino iti rawa te kitea o 6,5,-2.

$$5\left(1\times 6+5\right)+12x=-15\times \frac{11}{15}$$

Whakareatia te 1 ki te 6, ka 6.

$$5\left(6+5\right)+12x=-15\times \frac{11}{15}$$

Tāpirihia te 6 ki te 5, ka 11.

$$5\times 11+12x=-15\times \frac{11}{15}$$

Whakareatia te 5 ki te 11, ka 55.

$$55+12x=-15\times \frac{11}{15}$$

Whakareatia -15 ki te \frac{11}{15}.

$$55+12x=-11$$

Tangohia te 55 mai i ngā taha e rua.

$$12x=-11-55$$

Tangohia te 55 i te -11, ka -66.

$$12x=-66$$

Whakawehea ngā taha e rua ki te 12.

$$x=\frac{-66}{12}$$

Whakahekea te hautanga \frac{-66}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 6.

$$x=-\frac{11}{2}$$