Whakaoti mō x
x\leq -2
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.003x+0.4\geq 0.02x+0.434
Whakamahia te āhuatanga tohatoha hei whakarea te 0.1 ki te 0.03x+4.
0.003x+0.4-0.02x\geq 0.434
Tangohia te 0.02x mai i ngā taha e rua.
-0.017x+0.4\geq 0.434
Pahekotia te 0.003x me -0.02x, ka -0.017x.
-0.017x\geq 0.434-0.4
Tangohia te 0.4 mai i ngā taha e rua.
-0.017x\geq 0.034
Tangohia te 0.4 i te 0.434, ka 0.034.
x\leq \frac{0.034}{-0.017}
Whakawehea ngā taha e rua ki te -0.017. I te mea he tōraro a -0.017, ka huri te ahunga koreōrite.
x\leq \frac{34}{-17}
Whakarohaina te \frac{0.034}{-0.017} mā te whakarea i te taurunga me te tauraro ki te 1000.
x\leq -2
Whakawehea te 34 ki te -17, kia riro ko -2.
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