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

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

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

The factors of (12 x - 8y) (a - 2b) + ( 6b - 2a) ( 3x - 2y) are :

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

Subtract: (i) 5a + 7b - 2c from 3a - 7b + 4c (ii) a - 2b - 3c from -2a + 5b - 4c (iii) 5x^(2) - 3xy + y^(2) from 7x^(2) - 2xy - 4y^(2) (iv) 6x^(3) - 7x^(2) + 5x - 3 from 4 - 5x + 6x^(2) - 8x^(3) (v) x^(3) + 2x^(2) y + 6xy^(2) - y^(3) from y^(3) - 3xy^(2) - 4x^(2) (vi) -11 x^(2) y^(2) + 7xy - 6 from 9x^(2) y^(2) - 6xy + 9 (vii) -2a + b + 6d from 5a - 2b - 3c