Find the value of k, if is a solution of the equation .
Check which of the following are solutions of the equation and which are not:
Write four solutions for each of the following equations:
(i) (ii) (iii)
Which one of the following options is true, and why?
(i) A unique solution (ii) Only two solutions (iii) Infinitely many solutions
Express the following linear equations in the form and indicate the values of and in each case: