Whakaoti mō c
c=2-\frac{4}{x}
x\neq 0
Whakaoti mō x
x=-\frac{4}{c-2}
c\neq 2
Graph
Tohaina
Kua tāruatia ki te papatopenga
xc=2x-4
He hanga arowhānui tō te whārite.
\frac{xc}{x}=\frac{2x-4}{x}
Whakawehea ngā taha e rua ki te x.
c=\frac{2x-4}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.
c=2-\frac{4}{x}
Whakawehe -4+2x ki te x.
cx-2x=-4
Tangohia te 2x mai i ngā taha e rua.
\left(c-2\right)x=-4
Pahekotia ngā kīanga tau katoa e whai ana i te x.
\frac{\left(c-2\right)x}{c-2}=-\frac{4}{c-2}
Whakawehea ngā taha e rua ki te c-2.
x=-\frac{4}{c-2}
Mā te whakawehe ki te c-2 ka wetekia te whakareanga ki te c-2.
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