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Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

3-\left(x+1\right)=x+2
Tē taea kia ōrite te tāupe x ki -\frac{1}{2} nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te 2x+1.
3-x-1=x+2
Hei kimi i te tauaro o x+1, kimihia te tauaro o ia taurangi.
2-x=x+2
Tangohia te 1 i te 3, ka 2.
2-x-x=2
Tangohia te x mai i ngā taha e rua.
2-2x=2
Pahekotia te -x me -x, ka -2x.
-2x=2-2
Tangohia te 2 mai i ngā taha e rua.
-2x=0
Tangohia te 2 i te 2, ka 0.
x=0
He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te -2 e ōrite ki 0, me ōrite pū te x ki 0.