Whakaoti mō x
x=-\frac{y}{7}
Whakaoti mō y
y=-7x
Graph
Tohaina
Kua tāruatia ki te papatopenga
x-8x=y
Tangohia te 8x mai i ngā taha e rua.
-7x=y
Pahekotia te x me -8x, ka -7x.
\frac{-7x}{-7}=\frac{y}{-7}
Whakawehea ngā taha e rua ki te -7.
x=\frac{y}{-7}
Mā te whakawehe ki te -7 ka wetekia te whakareanga ki te -7.
x=-\frac{y}{7}
Whakawehe y ki te -7.
y+8x=x
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
y=x-8x
Tangohia te 8x mai i ngā taha e rua.
y=-7x
Pahekotia te x me -8x, ka -7x.
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