Whakaoti mō x
x\leq 140
Graph
Pātaitai
Algebra
2.8+0.07x \geq .09x
Tohaina
Kua tāruatia ki te papatopenga
2.8+0.07x-0.09x\geq 0
Tangohia te 0.09x mai i ngā taha e rua.
2.8-0.02x\geq 0
Pahekotia te 0.07x me -0.09x, ka -0.02x.
-0.02x\geq -2.8
Tangohia te 2.8 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x\leq \frac{-2.8}{-0.02}
Whakawehea ngā taha e rua ki te -0.02. I te mea he tōraro a -0.02, ka huri te ahunga koreōrite.
x\leq \frac{-280}{-2}
Whakarohaina te \frac{-2.8}{-0.02} mā te whakarea i te taurunga me te tauraro ki te 100.
x\leq 140
Whakawehea te -280 ki te -2, kia riro ko 140.
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