Find the value of `lambda\ ` , if `x=-lambda\ a n d\ y=5/2` is a solution of the equation `x+4y-7=0`

Explanation

To find the value of \(\lambda\) given that \(x = -\lambda\) and \(y = \frac{5}{2}\) is a solution of the equation \(x + 4y - 7 = 0\), we can follow these steps:

### Step 1: Substitute the values of \(x\) and \(y\) into the equation
We start with the equation:
\[ x + 4y - 7 = 0 \]
Substituting \(x = -\lambda\) and \(y = \frac{5}{2}\):
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