If the system of equations 2x + 3y = 7 and 2ax + (a + b) y = 28 has infinitely many solutions
Channel: Doubtnut
Date: 2020-02-02

If the system of equations 2x + 3y = 7 and 2ax + (a + b) y = 28 has infinitely many solutions, then which one of the following is correct ?