Whakaoti mō x
x=\frac{y+2}{2}
Whakaoti mō y
y=2\left(x-1\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-y-2\left(x-y\right)=2x-2
Whakareatia ngā taha e rua o te whārite ki te 2.
2x-y-2x+2y=2x-2
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x-y.
-y+2y=2x-2
Pahekotia te 2x me -2x, ka 0.
y=2x-2
Pahekotia te -y me 2y, ka y.
2x-2=y
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2x=y+2
Me tāpiri te 2 ki ngā taha e rua.
\frac{2x}{2}=\frac{y+2}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{y+2}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
x=\frac{y}{2}+1
Whakawehe y+2 ki te 2.
2x-y-2\left(x-y\right)=2x-2
Whakareatia ngā taha e rua o te whārite ki te 2.
2x-y-2x+2y=2x-2
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x-y.
-y+2y=2x-2
Pahekotia te 2x me -2x, ka 0.
y=2x-2
Pahekotia te -y me 2y, ka y.
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