Whakaoti mō x
x=\frac{y-1}{2}
Whakaoti mō y
y=2x+1
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x+2=2y
Me tāpiri te 2y ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
4x=2y-2
Tangohia te 2 mai i ngā taha e rua.
\frac{4x}{4}=\frac{2y-2}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{2y-2}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x=\frac{y-1}{2}
Whakawehe -2+2y ki te 4.
-2y+2=-4x
Tangohia te 4x mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
-2y=-4x-2
Tangohia te 2 mai i ngā taha e rua.
\frac{-2y}{-2}=\frac{-4x-2}{-2}
Whakawehea ngā taha e rua ki te -2.
y=\frac{-4x-2}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
y=2x+1
Whakawehe -4x-2 ki te -2.
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