\left\{ \begin{array} { l } { a + 3 \beta + \gamma = 0 } \\ { \alpha + 5 \beta + 3 \gamma = - 2 } \\ { \alpha + 2 \beta + 0 = 1 } \end{array} \right.
Solve for a, β, γ, α
a=\alpha
\beta =\frac{1-\alpha }{2}
\gamma =\frac{\alpha -3}{2}
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