If x=1,y=3 and x+y=k find the value of k

If the middle point of the line segment joining (3, 4) and (k, 7) is (x, y) and 2x+2y+1=0 , find the value of k .

If x=-1,\ y=2 is a solution of the equation 3x+4y=k , find the value of k

The line x - 6y + 11 = 0 bisects the join of (8, -1) and (0, k). Find the value of k.

If K is constant such that xy + k = e ^(((x-1)^2)/(2)) satisfies the differential equation x . ( dy )/( dx) = (( x^2 - x-1) y+ (x-1) and y (1) =0 then find the value of K .

If the line y=sqrt(3)x+k touches the circle x^2+y^2=16 , then find the value of kdot

If the line y=sqrt(3)x+k touches the circle x^2+y^2=16 , then find the value of kdot

The line x/k=y/2=z/-12 makes an isosceles triangle with the planes 2x+y+3z-1=0 and x+2y-3z-1=0 then the value of k is-

If x = 2k-1 and y=k is a solution the equation 3x-5y-7=0 ; find the value of k.

If x=k^2 and y=k is a solution of the equation x-5y+6=0 then find the values of k

Find the point of intersection of the lines 4x + 3y = 1 and 3x - y + 9 = 0 . If this point lies on the line (2k - 1) x - 2y = 4 , find the value of k. The above question can also be stated as : If the lines 4x + 3y = 1, 3x – y + 9 = 0 and (2k - 1) x - 2y = 4 are concurrent (pass through the same point), find the value of k.