Write four solutions for each of the following equations:
(i) $2x + y = 7$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(i) $2x + 3y = 9.3\overline{5}$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(vii) $y - 2 = 0$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(ii) $x - \frac{y}{5} - 10 = 0$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(ii) $(2, 0)$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(i) $(0, 2)$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(v) $2x = -5y$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(vi) $3x + 2 = 0$

Write four solutions for each of the following equations:
(iii) $x = 4y$

Write four solutions for each of the following equations:
(ii) $\pi x + y = 9$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(iii) $(4, 0)$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(iv) $(\sqrt{2}, 4\sqrt{2})$

Check which of the following are solutions of the equation $x - 2y = 4$ and which are not:
(v) $(1, 1)$

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(iv) $x = 3y$

Find the value of $k$, if $x = 2$, $y = 1$ is a solution of the equation $2x + 3y = k$.

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(iii) $-2x + 3y = 6$

Which one of the following options is true, and why? $y = 3x + 5$ has

The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.
(Take the cost of a notebook to be $x$ and that of a pen to be $y$).

Express the following linear equations in the form $ax + by + c = 0$ and indicate the values of $a$, $b$ and $c$ in each case:
(viii) $5 = 2x$