Whakaoti mō x
x=\frac{y-7}{2}
Whakaoti mō y
y=2x+7
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x=-7+y
Me tāpiri te y ki ngā taha e rua.
2x=y-7
He hanga arowhānui tō te whārite.
\frac{2x}{2}=\frac{y-7}{2}
Whakawehea ngā taha e rua ki te 2.
x=\frac{y-7}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
-y=-7-2x
Tangohia te 2x mai i ngā taha e rua.
-y=-2x-7
He hanga arowhānui tō te whārite.
\frac{-y}{-1}=\frac{-2x-7}{-1}
Whakawehea ngā taha e rua ki te -1.
y=\frac{-2x-7}{-1}
Mā te whakawehe ki te -1 ka wetekia te whakareanga ki te -1.
y=2x+7
Whakawehe -7-2x ki te -1.
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