Whakaoti mō c
c\leq -\frac{20}{9}
Tohaina
Kua tāruatia ki te papatopenga
2.25c\leq 20-25
Tangohia te 25 mai i ngā taha e rua.
2.25c\leq -5
Tangohia te 25 i te 20, ka -5.
c\leq \frac{-5}{2.25}
Whakawehea ngā taha e rua ki te 2.25. I te mea he tōrunga te 2.25, kāore e huri te ahunga koreōrite.
c\leq \frac{-500}{225}
Whakarohaina te \frac{-5}{2.25} mā te whakarea i te taurunga me te tauraro ki te 100.
c\leq -\frac{20}{9}
Whakahekea te hautanga \frac{-500}{225} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.
Ngā Tauira
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