Whakaoti mō x
x=7
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x-8\right)\times 5=2-x
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara 2,8 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(x-8\right)\left(x-2\right), arā, te tauraro pātahi he tino iti rawa te kitea o x-2,8-x.
5x-40=2-x
Whakamahia te āhuatanga tohatoha hei whakarea te x-8 ki te 5.
5x-40+x=2
Me tāpiri te x ki ngā taha e rua.
6x-40=2
Pahekotia te 5x me x, ka 6x.
6x=2+40
Me tāpiri te 40 ki ngā taha e rua.
6x=42
Tāpirihia te 2 ki te 40, ka 42.
x=\frac{42}{6}
Whakawehea ngā taha e rua ki te 6.
x=7
Whakawehea te 42 ki te 6, kia riro ko 7.
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