Whakaoti mō w
w\geq 7
Pātaitai
Algebra
28 \leq 4 w
Tohaina
Kua tāruatia ki te papatopenga
\frac{28}{4}\leq w
Whakawehea ngā taha e rua ki te 4. I te mea he tōrunga te 4, kāore e huri te ahunga koreōrite.
7\leq w
Whakawehea te 28 ki te 4, kia riro ko 7.
w\geq 7
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa. Ka huri tēnei i te aronga o te tohu.
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