Whakaoti mō x
x>-\frac{2}{19}
Graph
Tohaina
Kua tāruatia ki te papatopenga
12x-\left(x+2\right)<6\times 5x
Me whakarea ngā taha e rua o te whārite ki te 12, arā, te tauraro pātahi he tino iti rawa te kitea o 12,2. I te mea he tōrunga te 12, kāore e huri te ahunga koreōrite.
12x-x-2<6\times 5x
Hei kimi i te tauaro o x+2, kimihia te tauaro o ia taurangi.
11x-2<6\times 5x
Pahekotia te 12x me -x, ka 11x.
11x-2<30x
Whakareatia te 6 ki te 5, ka 30.
11x-2-30x<0
Tangohia te 30x mai i ngā taha e rua.
-19x-2<0
Pahekotia te 11x me -30x, ka -19x.
-19x<2
Me tāpiri te 2 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x>-\frac{2}{19}
Whakawehea ngā taha e rua ki te -19. I te mea he tōraro a -19, ka huri te ahunga koreōrite.
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