J P Mohindru and Bharat Mohindru Solutions for Chapter: Pair of Linear Equations in Two Variables, Exercise 9: FOR ASSESSMENT

Write the values of '$k$' for which the system of equations: $x+ky=0,$ $2x-y=0$ has a unique solution.

Graphically, two system of equations $x+7=0, y-2=0$ and $x-2=0, y+7=0$ enclose a:

If the graph of two lines passes through the same points, then the system of equations representing these lines is

If $x=a, y=b$ is the solution of the equations$x-y=2$ and $x+y=4$, then the values of $a$ and $b$ are, respectively

If $3x+2y=13$ and $3x-2y=5,$ then the value of $x$ is

If $\left(6, k\right)$ is a solution of the equation $3x+y-22=0,$ then the value of $k$ is

A pair of linear equations which has unique solution $x=2, y=-3$ is:
 

If $\frac{2}{x}+\frac{3}{y}=13$ and $\frac{5}{x}-\frac{4}{y}=-2$, then the sum $\left(x+y\right)$ is equal to: