The equation of a line which is parallel to the line $x+3y=5$ is $\ldots \ldots \ldots \ldots$

The graph of the pair of equations $2x + y = 7$ and $5x - 2y = 4$ is:

The solution set of a pair of equations $x=4$ and $y=5$ is $\ldots \ldots \ldots \ldots$

The cost of $2$ pencils and $3$ erasers is ₹ $9$,and the cost of $4$ pencils and $6$ erasers is ₹ $18$. Determine the cost of each pencil and each eraser.

On comparing the ratios $\frac{a_{1}}{a_{2}}, \frac{b_{1}}{b_{2}}$ and $\frac{c_{1}}{c_{2}},$ find out whether the lines representing the following pairs of linear equations intersect at a point,are parallel,or are coincident:
$9x + 3y + 12 = 0$
$18x + 6y + 24 = 0$

The pair of equations $2x + 3y = 5$ and $2x + 3y = 8$ is ..........