Whakaoti mō x
x=2\left(y-20\right)
Whakaoti mō y
y=\frac{x+40}{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{1}{2}x+20=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{1}{2}x=y-20
Tangohia te 20 mai i ngā taha e rua.
\frac{\frac{1}{2}x}{\frac{1}{2}}=\frac{y-20}{\frac{1}{2}}
Me whakarea ngā taha e rua ki te 2.
x=\frac{y-20}{\frac{1}{2}}
Mā te whakawehe ki te \frac{1}{2} ka wetekia te whakareanga ki te \frac{1}{2}.
x=2y-40
Whakawehe y-20 ki te \frac{1}{2} mā te whakarea y-20 ki te tau huripoki o \frac{1}{2}.
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