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

Tohaina

-2x+12=2x+12
Whakamahia te āhuatanga tohatoha hei whakarea te -2 ki te x-6.
-2x+12-2x=12
Tangohia te 2x mai i ngā taha e rua.
-4x+12=12
Pahekotia te -2x me -2x, ka -4x.
-4x=12-12
Tangohia te 12 mai i ngā taha e rua.
-4x=0
Tangohia te 12 i te 12, ka 0.
x=0
He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te -4 e ōrite ki 0, me ōrite pū te x ki 0.