Find the value of r in the following expression.
$$(J - p - r - s)/q + (J - p - q - s)/r + (J - q - r - s)/p + (J - p - q - r)/s = 4$$
$J, p, q, r, s$ are real and $p + q + s = 3$.
Find the value of $r$.
Find the value of r in the following expression.
$$(J - p - r - s)/q + (J - p - q - s)/r + (J - q - r - s)/p + (J - p - q - r)/s = 4$$
$J, p, q, r, s$ are real and $p + q + s = 3$.
Find the value of $r$.