Whakaoti i te 2x+9=-17/7

$$2x+9= \frac{ -17 }{ 7 }$$

Whakaoti mō x

$$x = -\frac{40}{7} = -5\frac{5}{7} \approx -5.714285714$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Ka taea te hautanga \frac{-17}{7} te tuhi anō ko -\frac{17}{7} mā te tango i te tohu tōraro.

$$2x+9=-\frac{17}{7}$$

Tangohia te 9 mai i ngā taha e rua.

$$2x=-\frac{17}{7}-9$$

Me tahuri te 9 ki te hautau \frac{63}{7}.

$$2x=-\frac{17}{7}-\frac{63}{7}$$

Tā te mea he rite te tauraro o -\frac{17}{7} me \frac{63}{7}, me tango rāua mā te tango i ō raua taurunga.

$$2x=\frac{-17-63}{7}$$

Tangohia te 63 i te -17, ka -80.

$$2x=-\frac{80}{7}$$

Whakawehea ngā taha e rua ki te 2.

$$x=\frac{-\frac{80}{7}}{2}$$

Tuhia te \frac{-\frac{80}{7}}{2} hei hautanga kotahi.

$$x=\frac{-80}{7\times 2}$$

Whakareatia te 7 ki te 2, ka 14.

$$x=\frac{-80}{14}$$

Whakahekea te hautanga \frac{-80}{14} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$x=-\frac{40}{7}$$