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Whakaoti mō x
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Tohaina

2x+2+x=32
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x+1.
3x+2=32
Pahekotia te 2x me x, ka 3x.
3x=32-2
Tangohia te 2 mai i ngā taha e rua.
3x=30
Tangohia te 2 i te 32, ka 30.
x=\frac{30}{3}
Whakawehea ngā taha e rua ki te 3.
x=10
Whakawehea te 30 ki te 3, kia riro ko 10.