Whakaoti i te 7(3-x)geq15

$$7 ( 3 - x ) \geq 15$$

Whakaoti mō x

$$x\leq \frac{6}{7}$$

Ngā Upane Otinga

Whakawehea ngā taha e rua ki te 7. I te mea he tōrunga te 7, kāore e huri te ahunga koreōrite.

$$3-x\geq \frac{15}{7}$$

Tangohia te 3 mai i ngā taha e rua.

$$-x\geq \frac{15}{7}-3$$

Me tahuri te 3 ki te hautau \frac{21}{7}.

$$-x\geq \frac{15}{7}-\frac{21}{7}$$

Tā te mea he rite te tauraro o \frac{15}{7} me \frac{21}{7}, me tango rāua mā te tango i ō raua taurunga.

$$-x\geq \frac{15-21}{7}$$

Tangohia te 21 i te 15, ka -6.

$$-x\geq -\frac{6}{7}$$

Whakawehea ngā taha e rua ki te -1. I te mea he tōraro a -1, ka huri te ahunga koreōrite.

$$x\leq \frac{-\frac{6}{7}}{-1}$$

Tuhia te \frac{-\frac{6}{7}}{-1} hei hautanga kotahi.

$$x\leq \frac{-6}{7\left(-1\right)}$$

Whakareatia te 7 ki te -1, ka -7.

$$x\leq \frac{-6}{-7}$$

Ka taea te hautanga \frac{-6}{-7} te whakamāmā ki te \frac{6}{7} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.

$$x\leq \frac{6}{7}$$