\frac { 5 } { 100 + x } = 2.5 \%
Whakaoti mō x
x=100
Graph
Tohaina
Kua tāruatia ki te papatopenga
100\times 5=\left(x+100\right)\times 2.5
Tē taea kia ōrite te tāupe x ki -100 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 100\left(x+100\right), arā, te tauraro pātahi he tino iti rawa te kitea o 100+x,100.
500=\left(x+100\right)\times 2.5
Whakareatia te 100 ki te 5, ka 500.
500=2.5x+250
Whakamahia te āhuatanga tohatoha hei whakarea te x+100 ki te 2.5.
2.5x+250=500
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2.5x=500-250
Tangohia te 250 mai i ngā taha e rua.
2.5x=250
Tangohia te 250 i te 500, ka 250.
x=\frac{250}{2.5}
Whakawehea ngā taha e rua ki te 2.5.
x=\frac{2500}{25}
Whakarohaina te \frac{250}{2.5} mā te whakarea i te taurunga me te tauraro ki te 10.
x=100
Whakawehea te 2500 ki te 25, kia riro ko 100.
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