JEE Mains 04-Sep-2020 Shift 1 Solved Paper

Section: Mathematics
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Question : 71 of 75
 
Marks: +1, -0
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 equalto _______.
[4 Sep 2020 Shift 1]
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