Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
7\left(128x-1\right)=1785\left(x-1\right)
Tē taea kia ōrite te tāupe x ki 1 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x-1.
896x-7=1785\left(x-1\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te 128x-1.
896x-7=1785x-1785
Whakamahia te āhuatanga tohatoha hei whakarea te 1785 ki te x-1.
896x-7-1785x=-1785
Tangohia te 1785x mai i ngā taha e rua.
-889x-7=-1785
Pahekotia te 896x me -1785x, ka -889x.
-889x=-1785+7
Me tāpiri te 7 ki ngā taha e rua.
-889x=-1778
Tāpirihia te -1785 ki te 7, ka -1778.
x=\frac{-1778}{-889}
Whakawehea ngā taha e rua ki te -889.
x=2
Whakawehea te -1778 ki te -889, kia riro ko 2.
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