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

Tohaina

8+45+x=20
Tāpirihia te 4 ki te 4, ka 8.
53+x=20
Tāpirihia te 8 ki te 45, ka 53.
x=20-53
Tangohia te 53 mai i ngā taha e rua.
x=-33
Tangohia te 53 i te 20, ka -33.