Systems of linear equations: Systems of linear equations
The notion of a system of linear equations
Solve the system of equations \[\lineqs{4 x -9 &=& 9x-19 \cr 4 x + 5 &=& 2 x +9 \cr}\] in \(x\). Give the answer in the form \(none\) if there is no solution, otherwise in the form \(x=a\) for a suitable number \(a\).
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