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Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

2+10x=7x+30-4
Tangohia te 19 i te 21, ka 2.
2+10x=7x+26
Tangohia te 4 i te 30, ka 26.
2+10x-7x=26
Tangohia te 7x mai i ngā taha e rua.
2+3x=26
Pahekotia te 10x me -7x, ka 3x.
3x=26-2
Tangohia te 2 mai i ngā taha e rua.
3x=24
Tangohia te 2 i te 26, ka 24.
x=\frac{24}{3}
Whakawehea ngā taha e rua ki te 3.
x=8
Whakawehea te 24 ki te 3, kia riro ko 8.