Whakaoti mō x_7
x_{7}=3275.5
Tohaina
Kua tāruatia ki te papatopenga
x_{7}-5=3270.5
Tāpirihia te 5 ki te 3265.5, ka 3270.5.
x_{7}=3270.5+5
Me tāpiri te 5 ki ngā taha e rua.
x_{7}=3275.5
Tāpirihia te 3270.5 ki te 5, ka 3275.5.
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