Whakaoti mō x
x=\frac{y+28}{7}
Whakaoti mō y
y=7\left(x-4\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
7x-28=y
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x-4.
7x=y+28
Me tāpiri te 28 ki ngā taha e rua.
\frac{7x}{7}=\frac{y+28}{7}
Whakawehea ngā taha e rua ki te 7.
x=\frac{y+28}{7}
Mā te whakawehe ki te 7 ka wetekia te whakareanga ki te 7.
x=\frac{y}{7}+4
Whakawehe y+28 ki te 7.
7x-28=y
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te x-4.
y=7x-28
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
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