Let the system of linear equations
x + y + z = 2
3x + y + z = 4
x + 2z = 1
have a unique solution (x, y, z). If (, x), (y, ) and (x, y) are collinear points, then the sum of absolute values of all possible values of is
JEE Main 2022 · 24 Jun, Evening shift · Q4609