Whakaoti i te -0.7=0.4(3-5x)

$$- 0.7 = 0.4 ( 3 - 5 x )$$

Whakaoti mō x

$$x=0.95$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakawehea ngā taha e rua ki te 0.4.

$$\frac{-0.7}{0.4}=3-5x$$

Whakarohaina te \frac{-0.7}{0.4} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\frac{-7}{4}=3-5x$$

Ka taea te hautanga \frac{-7}{4} te tuhi anō ko -\frac{7}{4} mā te tango i te tohu tōraro.

$$-\frac{7}{4}=3-5x$$

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

$$3-5x=-\frac{7}{4}$$

Tangohia te 3 mai i ngā taha e rua.

$$-5x=-\frac{7}{4}-3$$

Me tahuri te 3 ki te hautau \frac{12}{4}.

$$-5x=-\frac{7}{4}-\frac{12}{4}$$

Tā te mea he rite te tauraro o -\frac{7}{4} me \frac{12}{4}, me tango rāua mā te tango i ō raua taurunga.

$$-5x=\frac{-7-12}{4}$$

Tangohia te 12 i te -7, ka -19.

$$-5x=-\frac{19}{4}$$

Whakawehea ngā taha e rua ki te -5.

$$x=\frac{-\frac{19}{4}}{-5}$$

Tuhia te \frac{-\frac{19}{4}}{-5} hei hautanga kotahi.

$$x=\frac{-19}{4\left(-5\right)}$$

Whakareatia te 4 ki te -5, ka -20.

$$x=\frac{-19}{-20}$$

Ka taea te hautanga \frac{-19}{-20} te whakamāmā ki te \frac{19}{20} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x=\frac{19}{20}$$