`{:(2x - 4y = k),(5x - 10y = 7.5):}`

{:(2x - 4y = 3),(5x - ky = 7.5):}

{:(2x - 4y = 3),(5x - ky = 7.5):}

{:(2x - 3y = k),(4x + 5y = 3):}

If (3x -4y) : (2x -3y) = (5x -6y) : (4x -5y) , find : x : y .

The sum of least distance and greatest distance from (4, -3) to circle x^(2) + y^(2) + 4x - 10y - 7 = 0 is 5k then the value of k is -

{(-2x+5y=1), (7x-10y=-11):} If (x,y) is a solution to the system of equations above, what is the sum of x and y?

Solve : (7 + x)/(5) - (2x - y)/(4) = 3y - 5 (5y - 7)/(2) + (4x - 3)/(6) = 18 - 5x

3x-4y=-7,5x-2y=0

If [(2x+y, 4x),(5x-7, 4x)] = [(7,7y-13),(y,x+6)] , then the values of x,y are