If `11x + 4y = 33` and `4x + 11y = 12,` then x + y =

If (5x - 3y) : (2x + 4y) = 11 : 12 , then find x : y .

If 3 x + 4y - 11= 18 and 8x - 6y + 12 = 6 , then what is the value of 5x - 3y - 9 ?

if x and y satisfy 3x + 2y = 11 and 2x + 3y = 4 then y=….

If 3x+ 4y-11 = 18 and 8x- 6y +12 = 6, then what is the value of 5x- 3y - 9?

Find three different solutions of the each of the following equations. (i) 3x + 4y = 7 (ii) y = 6x (iii) 2x - y = 7 (iv) 13x - 12y = 25 (v) 10x + 11y = 21 (vi) x + y = 0

Find three different solutions of the each of the following equations. (i) 3x + 4y = 7 (ii) y = 6x (iii) 2x - y = 7 (iv) 13x - 12y = 25 (v) 10x + 11y = 21 (vi) x + y = 0