If `x/y = 9/8` then the value of `(6/7 +(y-x)/(y+x))` equals :

If (x)/(y)=(6)/(5), then the value of ((6)/(7)-(5x-y)/(5x+y)) is equal to (a) (1)/(7)( b) (2)/(7)(c)(3)/(7) (d) (4)/(7)

If x^2+8y^2-12y-4xy+ 9 = 0 , then the value of (7x - 8y) is: यदि x^2+8y^2-12y-4xy+ 9 = 0 ,तो (7x - 8y) का मान क्या होगा

If 2x-y = 7 and x-y = 6, then value of x and y will be

If 7x-8y=9, then y=………..

If x=5 and y=-2 , then find the value of (i) (8x-2y+5)/(2x+4ty+12) " "(ii) (5x-6y-7)/(3x+6y+12)