Write each of the following in the form ax + by + c = 0:

(i) 3x = 5 (ii) 5y = 4

(i) 3x = 5

⇒ 3x – 5 = 0

Comparing, 3x – 5 = 0 with ax + by + c = 0 we get,

the coefficient of x i.e., a = 3

and the coefficient of y i.e., b = 0 since, there is no term of y

and clearly, c = – 5

putting the values of a, b and c in ax + by + c = 0 we get,

3x + 0×y – 5 = 0

(ii) 5y = 4

⇒ 5y – 4 = 0

Comparing, 5y – 4 = 0 with ax + by + c = 0 we get,

the coefficient of x i.e., a = 0 since, there is no term of x

and the coefficient of y i.e., b = 5

and clearly, c = – 4

putting the values of a, b and c in ax + by + c = 0 we get,

0×x + 5y – 4 = 0