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

Tohaina

1+x-2x=-1
Tangohia te 2x mai i ngā taha e rua.
1-x=-1
Pahekotia te x me -2x, ka -x.
-x=-1-1
Tangohia te 1 mai i ngā taha e rua.
-x=-2
Tangohia te 1 i te -1, ka -2.
x=2
Me whakarea ngā taha e rua ki te -1.