Whakaoti mō x
x<-\frac{2}{7}
Graph
Tohaina
Kua tāruatia ki te papatopenga
15x<10\left(5x-2\right)-6\left(7x-3\right)
Me whakarea ngā taha e rua o te whārite ki te 30, arā, te tauraro pātahi he tino iti rawa te kitea o 2,3,5. I te mea he tōrunga te 30, kāore e huri te ahunga koreōrite.
15x<50x-20-6\left(7x-3\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 10 ki te 5x-2.
15x<50x-20-42x+18
Whakamahia te āhuatanga tohatoha hei whakarea te -6 ki te 7x-3.
15x<8x-20+18
Pahekotia te 50x me -42x, ka 8x.
15x<8x-2
Tāpirihia te -20 ki te 18, ka -2.
15x-8x<-2
Tangohia te 8x mai i ngā taha e rua.
7x<-2
Pahekotia te 15x me -8x, ka 7x.
x<-\frac{2}{7}
Whakawehea ngā taha e rua ki te 7. I te mea he tōrunga te 7, kāore e huri te ahunga koreōrite.
Ngā Tauira
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