Whakaoti mō x
x=-\frac{9}{y-7}
y\neq 7
Whakaoti mō y
y=7-\frac{9}{x}
x\neq 0
Graph
Tohaina
Kua tāruatia ki te papatopenga
xy-7x=-9
Tangohia te 7x mai i ngā taha e rua.
\left(y-7\right)x=-9
Pahekotia ngā kīanga tau katoa e whai ana i te x.
\frac{\left(y-7\right)x}{y-7}=-\frac{9}{y-7}
Whakawehea ngā taha e rua ki te y-7.
x=-\frac{9}{y-7}
Mā te whakawehe ki te y-7 ka wetekia te whakareanga ki te y-7.
xy=7x-9
He hanga arowhānui tō te whārite.
\frac{xy}{x}=\frac{7x-9}{x}
Whakawehea ngā taha e rua ki te x.
y=\frac{7x-9}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.
y=7-\frac{9}{x}
Whakawehe 7x-9 ki te x.
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