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Let \(y\) varies directly as \(x\). If \(y\) \(=\) 12 when \(x\) \(=\) 4, then write a linear equation. What is the value of \(y\) when \(x\) \(=\) 11?
 
Linear equation \(=\)
 
The value of \(y\), when \(x\) \(=\) 11 is .