Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

13x\leq -4-15
Tangohia te 15 mai i ngā taha e rua.
13x\leq -19
Tangohia te 15 i te -4, ka -19.
x\leq -\frac{19}{13}
Whakawehea ngā taha e rua ki te 13. I te mea he tōrunga te 13, kāore e huri te ahunga koreōrite.