Scipeáil chuig an bpríomhábhar
Réitigh do x_2.
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Réitigh do y_2.
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Fadhbanna den chineál céanna ó Chuardach Gréasáin

Roinn

x_{2}+z_{2}=1-y_{2}
Bain y_{2} ón dá thaobh.
x_{2}=1-y_{2}-z_{2}
Bain z_{2} ón dá thaobh.
y_{2}+z_{2}=1-x_{2}
Bain x_{2} ón dá thaobh.
y_{2}=1-x_{2}-z_{2}
Bain z_{2} ón dá thaobh.