-21
-9
-18
19
Given that,
x = -2 and y =3 is the solution of the equation 3x - 5y = k
So,
k = 3(-2) - 5(3)
= -6-15
= -21
If x=k2 and y=k is a solution of the equation x−5y+6=0, find k.
If θϵ(0,π2), and k=4sec2θ+9cosec2 θ, then the number of solution of the system of equations 3x - y + 4z = 3, x + 2y - 3z = -2, 6x + 5y + kz = -3 is ___
If x= 2 and y= 3 is a solution of 2x - 3y+ k = 0 find k value and write the resultant equation