- The line \(l _ { 1 }\) has equation \(2 x + 4 y - 3 = 0\)
The line \(l _ { 2 }\) has equation \(y = m x + 7\), where \(m\) is a constant.
Given that \(l _ { 1 }\) and \(l _ { 2 }\) are perpendicular,
- find the value of \(m\).
The lines \(l _ { 1 }\) and \(l _ { 2 }\) meet at the point \(P\).
- Find the \(x\) coordinate of \(P\).
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