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Tohaina

-3\geq 4n+8+5
Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te n+2.
-3\geq 4n+13
Tāpirihia te 8 ki te 5, ka 13.
4n+13\leq -3
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa. Ka huri tēnei i te aronga o te tohu.
4n\leq -3-13
Tangohia te 13 mai i ngā taha e rua.
4n\leq -16
Tangohia te 13 i te -3, ka -16.
n\leq \frac{-16}{4}
Whakawehea ngā taha e rua ki te 4. I te mea he tōrunga te 4, kāore e huri te ahunga koreōrite.
n\leq -4
Whakawehea te -16 ki te 4, kia riro ko -4.