If the point $(-2, 5)$ lies on the graph of the equation $ax + 3y = 7$,find the value of $a$.

Express the following linear equation in the form $ax + by + c = 0$ and indicate the values of $a, b$ and $c$ in each case:
$5x + 3y = 45$

State whether the following statement is True or False and justify your answer:
Every point on the graph of a linear equation in two variables does not represent a solution of the linear equation.

The graph of the equation $x+y=11$ passes through the first quadrant and .............

In a Cartesian plane,the graph of $x=0$ is $\ldots \ldots \ldots$

For the equation $3x - 2y = 12$,express $y$ in terms of $x$.