Whakaoti mō x
x=2900
Graph
Tohaina
Kua tāruatia ki te papatopenga
100-0.02x=42
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-0.02x=42-100
Tangohia te 100 mai i ngā taha e rua.
-0.02x=-58
Tangohia te 100 i te 42, ka -58.
x=\frac{-58}{-0.02}
Whakawehea ngā taha e rua ki te -0.02.
x=\frac{-5800}{-2}
Whakarohaina te \frac{-58}{-0.02} mā te whakarea i te taurunga me te tauraro ki te 100.
x=2900
Whakawehea te -5800 ki te -2, kia riro ko 2900.
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