Whakaoti mō x
x=3
Graph
Tohaina
Kua tāruatia ki te papatopenga
x\times 7-\left(x-1\right)\times 5=11
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara 0,1 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te x\left(x-1\right), arā, te tauraro pātahi he tino iti rawa te kitea o x-1,x,x^{2}-x.
x\times 7-\left(5x-5\right)=11
Whakamahia te āhuatanga tohatoha hei whakarea te x-1 ki te 5.
x\times 7-5x+5=11
Hei kimi i te tauaro o 5x-5, kimihia te tauaro o ia taurangi.
2x+5=11
Pahekotia te x\times 7 me -5x, ka 2x.
2x=11-5
Tangohia te 5 mai i ngā taha e rua.
2x=6
Tangohia te 5 i te 11, ka 6.
x=\frac{6}{2}
Whakawehea ngā taha e rua ki te 2.
x=3
Whakawehea te 6 ki te 2, kia riro ko 3.
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