Whakaoti mō x
x\leq -7
Graph
Tohaina
Kua tāruatia ki te papatopenga
2-2x\geq 8-\left(x-1\right)
Whakareatia ngā taha e rua o te whārite ki te 2. I te mea he tōrunga te 2, kāore e huri te ahunga koreōrite.
2-2x\geq 8-x-\left(-1\right)
Hei kimi i te tauaro o x-1, kimihia te tauaro o ia taurangi.
2-2x\geq 8-x+1
Ko te tauaro o -1 ko 1.
2-2x\geq 9-x
Tāpirihia te 8 ki te 1, ka 9.
2-2x+x\geq 9
Me tāpiri te x ki ngā taha e rua.
2-x\geq 9
Pahekotia te -2x me x, ka -x.
-x\geq 9-2
Tangohia te 2 mai i ngā taha e rua.
-x\geq 7
Tangohia te 2 i te 9, ka 7.
x\leq -7
Whakawehea ngā taha e rua ki te -1. I te mea he tōraro a -1, ka huri te ahunga koreōrite.
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