Whakaoti mō x
x>\frac{20400}{7}
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.5x-\left(0.5-0.3\right)\left(200-x\right)>2000
Tangohia te 0.5 i te 1, ka 0.5.
0.5x-0.2\left(200-x\right)>2000
Tangohia te 0.3 i te 0.5, ka 0.2.
0.5x-40+0.2x>2000
Whakamahia te āhuatanga tohatoha hei whakarea te -0.2 ki te 200-x.
0.7x-40>2000
Pahekotia te 0.5x me 0.2x, ka 0.7x.
0.7x>2000+40
Me tāpiri te 40 ki ngā taha e rua.
0.7x>2040
Tāpirihia te 2000 ki te 40, ka 2040.
x>\frac{2040}{0.7}
Whakawehea ngā taha e rua ki te 0.7. I te mea he tōrunga te 0.7, kāore e huri te ahunga koreōrite.
x>\frac{20400}{7}
Whakarohaina te \frac{2040}{0.7} mā te whakarea i te taurunga me te tauraro ki te 10.
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