Whakaoti mō x
x=\frac{y-4}{7}
Whakaoti mō y
y=7x+4
Graph
Tohaina
Kua tāruatia ki te papatopenga
y=7x+4
Pahekotia te 2x me 5x, ka 7x.
7x+4=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
7x=y-4
Tangohia te 4 mai i ngā taha e rua.
\frac{7x}{7}=\frac{y-4}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{y-4}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
y=7x+4
Pahekotia te 2x me 5x, ka 7x.
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