Express each of the following equations in the form ax+ by + c = 0 and indcate the values of a, b, c in each case.
(i) x = 6
(ii) 3x - y = x - 1
(iii) 2x + 9 = 0
(iv) 4y = 7
(v) x + y = 4
(vi) x2−y3=16+y