Whakaoti i te 0=x*6+6*9+3*8-6*7+3*9

$$0=x \times 6+6 \times 9+3 \times 8-6 \times 7+3 \times 9$$

Whakaoti mō x

$$x = -\frac{21}{2} = -10\frac{1}{2} = -10.5$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 6 ki te 9, ka 54. Whakareatia te 3 ki te 8, ka 24.

$$0=x\times 6+54+24-6\times 7+3\times 9$$

Tāpirihia te 54 ki te 24, ka 78.

$$0=x\times 6+78-6\times 7+3\times 9$$

Whakareatia te 6 ki te 7, ka 42.

$$0=x\times 6+78-42+3\times 9$$

Tangohia te 42 i te 78, ka 36.

$$0=x\times 6+36+3\times 9$$

Whakareatia te 3 ki te 9, ka 27.

$$0=x\times 6+36+27$$

Tāpirihia te 36 ki te 27, ka 63.

$$0=x\times 6+63$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$x\times 6+63=0$$

Tangohia te 63 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$x\times 6=-63$$

Whakawehea ngā taha e rua ki te 6.

$$x=\frac{-63}{6}$$

Whakahekea te hautanga \frac{-63}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$x=-\frac{21}{2}$$