Find the values of `a` and `b` for which the simultaneous equations `x+2y=1` and `(a-b)x+(a+b)y=a+b-2` have infinitely many solutions.

Find the values of a and b for which the simultaneous linear equations x+2y=1 and (a-b)x+(a+b)y=a+b-2 have infinitely many solutions.

Find the values of a and b for which the equations 5x+8y=7 and (a+b)x+(a-b)y=(2a+b+1) will have infinitely many sets of solution.

What is the value of k , for which the simultaneous equations 2x+3y=8 and 6x-ky=24 have infinitely many solutions ?

Find the values of a and b if the simultaneous linear equation ax-15y+10=0 and 2x+6y=b will have infinitely many solutions.

If the system of equations 2x+3y=7,\ \ \ \ (a+b)x+(2a-b)y=21 has infinitely many solutions, then

Values of a and b so that system of equations 2x + 3y = 7 and 2 ax + (a +b) y = 28 has infinitely many solutons are

Number of triplets of a, b & c for which the system of equations, ax - by = 2a - b and (c +1)x+cy = 10-a + 3 b has infinitely many solutions and x = 1. y = 3 is one of the solutions, is: (A) exactly one (B) exactly two (C) exactly three (D) infinitely many

for what values of a and b,the equations 5x+8y=7 and (a+b)x+(a-b)y=(2a+b+1) have infinite number of solutions

Find the values of a and b for which the following system of equations has infinitely many solutions: 2x+3y=7,\ \ \ \ (a-b)x+(a+b)y=3a+b-2