Whakaoti mō x
x=\frac{C-900}{15}
Whakaoti mō C
C=15\left(x+60\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
15x+900=C
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
15x=C-900
Tangohia te 900 mai i ngā taha e rua.
\frac{15x}{15}=\frac{C-900}{15}
Whakawehea ngā taha e rua ki te 15.
x=\frac{C-900}{15}
Mā te whakawehe ki te 15 ka wetekia te whakareanga ki te 15.
x=\frac{C}{15}-60
Whakawehe C-900 ki te 15.
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