1.Construct a linear equation from the following statements.
(i) The quotient of three times a number and 5 is 9.
(ii) One-third a number added to 5 gives 25.
2. Solve the following equations.
15(x-1) – 3(x-2) + 7(x+3) = 0
3. Find whether the pairs of triangles in each question below are congruent or not. If yes then state the criterion of congruence in each case.