Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Whakaoti mō y
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

x+y-2x=0
Tangohia te 2x mai i ngā taha e rua.
-x+y=0
Pahekotia te x me -2x, ka -x.
-x=-y
Tangohia te y mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=y
Me whakakore te -1 ki ngā taha e rua.
y=2x-x
Tangohia te x mai i ngā taha e rua.
y=x
Pahekotia te 2x me -x, ka x.