Whakaoti mō b
b=8+\frac{12}{x}
x\neq 0
Whakaoti mō x
x=-\frac{12}{8-b}
b\neq 8
Graph
Tohaina
Kua tāruatia ki te papatopenga
bx-7=8x+5
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
bx=8x+5+7
Me tāpiri te 7 ki ngā taha e rua.
bx=8x+12
Tāpirihia te 5 ki te 7, ka 12.
xb=8x+12
He hanga arowhānui tō te whārite.
\frac{xb}{x}=\frac{8x+12}{x}
Whakawehea ngā taha e rua ki te x.
b=\frac{8x+12}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.
b=8+\frac{12}{x}
Whakawehe 8x+12 ki te x.
8x+5-bx=-7
Tangohia te bx mai i ngā taha e rua.
8x-bx=-7-5
Tangohia te 5 mai i ngā taha e rua.
8x-bx=-12
Tangohia te 5 i te -7, ka -12.
\left(8-b\right)x=-12
Pahekotia ngā kīanga tau katoa e whai ana i te x.
\frac{\left(8-b\right)x}{8-b}=-\frac{12}{8-b}
Whakawehea ngā taha e rua ki te 8-b.
x=-\frac{12}{8-b}
Mā te whakawehe ki te 8-b ka wetekia te whakareanga ki te 8-b.
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