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

Tohaina

Σx=119-8+6+8
Tangohia te 6 i te 125, ka 119.
Σx=111+6+8
Tangohia te 8 i te 119, ka 111.
Σx=117+8
Tāpirihia te 111 ki te 6, ka 117.
Σx=125
Tāpirihia te 117 ki te 8, ka 125.
\frac{Σx}{Σ}=\frac{125}{Σ}
Whakawehea ngā taha e rua ki te Σ.
x=\frac{125}{Σ}
Mā te whakawehe ki te Σ ka wetekia te whakareanga ki te Σ.
Σx=119-8+6+8
Tangohia te 6 i te 125, ka 119.
Σx=111+6+8
Tangohia te 8 i te 119, ka 111.
Σx=117+8
Tāpirihia te 111 ki te 6, ka 117.
Σx=125
Tāpirihia te 117 ki te 8, ka 125.
xΣ=125
He hanga arowhānui tō te whārite.
\frac{xΣ}{x}=\frac{125}{x}
Whakawehea ngā taha e rua ki te x.
Σ=\frac{125}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.