Whakaoti mō x
x=\frac{7y}{3}
y\neq 0
Whakaoti mō y
y=\frac{3x}{7}
x\neq 0
Graph
Tohaina
Kua tāruatia ki te papatopenga
9x=y\times 21
Me whakarea ngā taha e rua o te whārite ki te 9y, arā, te tauraro pātahi he tino iti rawa te kitea o y,9.
9x=21y
He hanga arowhānui tō te whārite.
\frac{9x}{9}=\frac{21y}{9}
Whakawehea ngā taha e rua ki te 9.
x=\frac{21y}{9}
Mā te whakawehe ki te 9 ka wetekia te whakareanga ki te 9.
x=\frac{7y}{3}
Whakawehe 21y ki te 9.
9x=y\times 21
Tē taea kia ōrite te tāupe y ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 9y, arā, te tauraro pātahi he tino iti rawa te kitea o y,9.
y\times 21=9x
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
21y=9x
He hanga arowhānui tō te whārite.
\frac{21y}{21}=\frac{9x}{21}
Whakawehea ngā taha e rua ki te 21.
y=\frac{9x}{21}
Mā te whakawehe ki te 21 ka wetekia te whakareanga ki te 21.
y=\frac{3x}{7}
Whakawehe 9x ki te 21.
y=\frac{3x}{7}\text{, }y\neq 0
Tē taea kia ōrite te tāupe y ki 0.
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