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Réitigh do x.
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Réitigh do y.
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Graf
Tráth na gCeist
Linear Equation

Fadhbanna den chineál céanna ó Chuardach Gréasáin

Roinn

5x=31-7y
Bain 7y ón dá thaobh.
\frac{5x}{5}=\frac{31-7y}{5}
Roinn an dá thaobh faoi 5.
x=\frac{31-7y}{5}
Má roinntear é faoi 5 cuirtear an iolrúchán faoi 5 ar ceal.
7y=31-5x
Bain 5x ón dá thaobh.
\frac{7y}{7}=\frac{31-5x}{7}
Roinn an dá thaobh faoi 7.
y=\frac{31-5x}{7}
Má roinntear é faoi 7 cuirtear an iolrúchán faoi 7 ar ceal.