Systems of linear equations: Systems of linear equations
The notion of a system of linear equations
Solve the system of equations \[\lineqs{7 x + 1 &=& 2x+1 \cr 3 x + 1 &=& 2 x - 1 \cr}\] 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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