\left\{ \begin{array} { l } { 17 a \phi - 2 b = - 43 } \\ { 17 a + 2 b = - 59 } \end{array} \right.
Solve for a, ϕ, b
a=\frac{-2b-59}{17}
ϕ=-\frac{2b-43}{2b+59}
b\neq -\frac{59}{2}
Quiz
\left\{ \begin{array} { l } { 17 a \phi - 2 b = - 43 } \\ { 17 a + 2 b = - 59 } \end{array} \right.
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