Whakaoti mō x
x=20-y
Whakaoti mō y
y=20-x
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+y=\frac{40}{2}
Whakawehea ngā taha e rua ki te 2.
x+y=20
Whakawehea te 40 ki te 2, kia riro ko 20.
x=20-y
Tangohia te y mai i ngā taha e rua.
x+y=\frac{40}{2}
Whakawehea ngā taha e rua ki te 2.
x+y=20
Whakawehea te 40 ki te 2, kia riro ko 20.
y=20-x
Tangohia te x mai i ngā taha e rua.
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