The equation 5x + 7 = 0, gives the value of x which is 1. an irrational number 2. a whole number 3. a rational number 4. an integers

Given, 5x + 7 = 0 ⇒ 5x = -7 ⇒ x = As x is the form of where p and q both are integers and q ≠ 0, ∴ x is a rational number. Hence, Option 3 is the correct option.