`2x + 3y = 7& (a-b)x+ (a + b) y = 3a + b-2`

Find the value of a and b for which the following system of equations has infinite number of solutions. 2x + 3y = 7, (a + b) x + (2a - b) y = 3 (a + b + 1 ) .

2x + 3y =7 , (a + b ) x + ( 2a - b ) y = 21 .

2x + 3y = 7 , (a+b + 1 )x + (a + 2b + 2) y = 4 (a + b ) + 1

For what values of a and b does the following pair of linear equations have infinitely many solutions ? 2x + 3y = 7 a (x + y) - b (x - y) = 3a + b - 2

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

For what value of 'k' and 'b' lines 2x+3y = 7 and 2k x+ (k+b) y = 28 are coinsides ?

2x+3y=7(a+b)x+y(2a-b)=3(a+b+1) find the value of a+b

If a, b are noncollinear vectors and A = (x + 4y) a + (2x + y + 1)b, B = (y - 2x +2) a + (2x - 3y - 1) b and 3A = 2B, then (x, y) =

Factorize each of the following expressions: x a^2+x b^2-y a^2-y b^2 (2) x^2+x y a+x z+y z (3) 2a x+b x+2a y+b y (4) a b-b y-a y+y^2