Whakaoti mō x
x=180
Graph
Tohaina
Kua tāruatia ki te papatopenga
20=0.1\left(x+20\right)
Tē taea kia ōrite te tāupe x ki -20 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x+20.
20=0.1x+2
Whakamahia te āhuatanga tohatoha hei whakarea te 0.1 ki te x+20.
0.1x+2=20
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
0.1x=20-2
Tangohia te 2 mai i ngā taha e rua.
0.1x=18
Tangohia te 2 i te 20, ka 18.
x=\frac{18}{0.1}
Whakawehea ngā taha e rua ki te 0.1.
x=180
Whakarohaina te \frac{18}{0.1} mā te whakarea i te taurunga me te tauraro ki te 10. Ka whakawehea he tau ki te tahi, hua ai ko ia anō.
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