JEE PYQ: Matrices And Determinants Question 40
Question 40 - 2020 (04 Sep Shift 1)
If the system of equations $x - 2y + 3z = 9$, $2x + y + z = b$, $x - 7y + az = 24$, has infinitely many solutions, then $a - b$ is equal to ______.
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