Whakaoti mō x
x\geq 45
Graph
Tohaina
Kua tāruatia ki te papatopenga
90x+5500-100x\leq 5050
Whakamahia te āhuatanga tohatoha hei whakarea te 55-x ki te 100.
-10x+5500\leq 5050
Pahekotia te 90x me -100x, ka -10x.
-10x\leq 5050-5500
Tangohia te 5500 mai i ngā taha e rua.
-10x\leq -450
Tangohia te 5500 i te 5050, ka -450.
x\geq \frac{-450}{-10}
Whakawehea ngā taha e rua ki te -10. I te mea he tōraro a -10, ka huri te ahunga koreōrite.
x\geq 45
Whakawehea te -450 ki te -10, kia riro ko 45.
Ngā Tauira
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