Whakaoti mō x
x\geq \frac{69}{2}
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Tohaina
Kua tāruatia ki te papatopenga
-2x+15\leq -54
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa. Ka huri tēnei i te aronga o te tohu.
-2x\leq -54-15
Tangohia te 15 mai i ngā taha e rua.
-2x\leq -69
Tangohia te 15 i te -54, ka -69.
x\geq \frac{-69}{-2}
Whakawehea ngā taha e rua ki te -2. I te mea he tōraro a -2, ka huri te ahunga koreōrite.
x\geq \frac{69}{2}
Ka taea te hautanga \frac{-69}{-2} te whakamāmā ki te \frac{69}{2} mā te tango tahi i te tohu tōraro i te taurunga me te tauraro.
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